It's not got a lot of architectural "vision" - but what's there is "sound" - meaning it's all in one direction, out of one mould, whatever.
I also differ on MaxOfS2Ds assessment of the gameplay which would be pretty much a massacre I guess, not a map many will enjoy ...
It's definitely a beginners (mapper not player!) type of map, but you didn't bite off more than you could chew, which is good :)
All in all - nice, keep it up and I hope to see some more ... elaborate work ... someday ...
No hard feelings though, hope this didn't come out like trashing!