... what the actual f*ck

First off, this looks like it was made in .5 seconds, detail-wise

vcolor .2 .2 .2 would be fine, because right now you can't really see ANYTHING

second

""I focused on providing a very difficult challenge to help Sauer players perfect their movement skills without using weapons.""

I went through this map without weapons like it's supposed to be went through, and,
This is how I see it: a bunch of over-scaled jumps and half of which aren't even possible, no matter how many times you try it.

third
""perfect their movement skills""

As i already said, a bunch of over-scaled jumps, not many maps have jumps that need to be attempted a thousand times.

There really aren't many 'practice jumps'

fourth, tbh nobody really needs practice jumps of this design

fifth, here's how you can make it an actual, likable, decent race..:

first off, ditch the vcolor -9001

second, it's not bad to include weapons, for those 'just in-case moments'

third, the room with all the pillars, how about you make it more interesting. Say, a jumppad on one of them that launches you away, and you'll need to use rifle/other to get back.

fourth, make it less of a maze. the room with the particles as 'waypoints' is an example, just make that 1 solid hallway.

fifth, this one isn't so important for a race map but.. MORE DETAILS

sixth, if you still can't make a good map, talk to CubeMath/Brian, or just swipe some LITTLE-RACE-BLAH maps from servers.

I really don't like race maps in general, but if it's a 'train your skills map' that you're trying to make, then go spectate people on pub servers, and look at what they mess up on a lot, then figure out a 'training arena' or somethin.

yeah there's a lot of people that are gonna laugh at what i just wrote, but i was laughing the whole time, so lawl.

And finally, you have witnessed my lame attempt of making a review. inb4 suicizer.

The map is not hard, the map is fine, the tricks are very possible, Ace actually is saying someting true "Once you understand the limits of movement in Sauer, you'll be able to find more tricks in official maps." it also works for people ingame, you can gain advantage with all of this movement in every map, its similar in quake 3, when you know the "strafe technique" you can be extremly faster.

There are no details in this maps because it seems to be not necessary, textures are ok (simples and works)but the theme could be better, no ones dreams with floating cubes with colours xD, maybe in a dream when youre high. You should have created some floating things, houses, boats, windows, etc. To have more variety and make it more like a weird dream and not a dream where you just aparently have to jump throught squares.

PS:This is a race map, and labyinths and puzzles can be a bit annoying, thats a personal opinion :)

Content
It's about time to see another race map. There aren't many of that around here, neither the actual trickjump-maps.
The screenshot could be somewhat better to me. Some coloured blocks with some particles are being showed, nothing more. Isn't really coming through like that would be referred to racing.
Nice description though.

Theme
The theme seems very abstract, yet it kills the intention of the map. I seriously sometimes had no idea what to do next, because it was too dark, too plain or just illogical (for example, the window after those green ledges, only after actually retexturing the entire map and therefore getting into edit-mode actually showed me I should pass through the window and continue from there).
So minimize the theme more while putting the layout on first place.
Taking a "dreamworld" as theme shouldn't be considered as a theme, because that can be anything. Stick to a proper one instead.

Texturing
The texturing isn't that bad, yet it could show off way more the direction of where to go next. It's better to let a player plan his movements, than let him confront with the next situation right after he passed the last one.

Geometry
The geometry could be better. As for example, be sure to ceil the player in on a race map, as (nearly all) people try to cheat. This also gains performance as the engine only has to render a certain room, instead of the entire map.

Lighting
There is no lighting, which is bad. Don't use the specular shader to emulate some light as it's pretty confusing and you still have no idea where you are going (referring back to what said at texturing).

Detailing
There could have been added more details, even it's a very abstract map.

Clipping/Noclipping
As already said, be sure the player can't cheat. So clipping stuff isn't a bad thing to do.

Flow
It's often better to let it flow on a race-map than forcing the player to stop. Why? Because people will get frustrated. You can compare this to traffic lights. If you see from a distance that it's green, but turns red when you are near it (which forces you to stop unless you want a ticket), that causes frustration after a frequent amount of the same situation.
So avoid it.
Players have to start at a difficult situation right away (well, difficult for new beings). Let them warm up a little bit before actually letting them drown.

Gameplay
I know it's not meant to trickjump here, yet I miss it. It's part of the gameplay of Sauerbraten (and therefore a certain limitation) which is often forgotten and even considered cheating on race-maps, while it obviously isn't. It should be appreciated way more than being banned.

Overall
It's not a bad race-map, but it could be improved. I'll rate it 5/10 for now.

First off, don't be a cunt when people leave constructive criticism. Second, I don't like this map.

It's really hard to follow, because you literally vcolored one texture for the entire map. The jumps are difficult, but I'm sure you're a 1337 player so good for you. Honestly I'm not a fan.