Nice to see the textures used once again.
However, you should refer that the eX Texturepack is necessary to see the map properly (with some credits to the original author of the textures).
Please do not call the textures directly from packages/textures/yves_allaire/ex, but rather from packages/textures/yves_allaire/ex/ex512.
As Meaninglezz mentioned; the map lacks a certain contrast. This is partly due that the eX-textures are pretty much brown and grey only.
An own-made waterdudv would make the water move more like it actually is really streaming around in those beams. I know it's quite a weird mission to do so as I've tried myself; but it great fun if you notice the impact on the water-material (I've once successfully added waving circles into the water like if liquid is dripping into a pool. The only thing which killed it was that it was still scrolling a bit over the surface, but that probably could have been fixed also).
I like the vertical movement also, but certain jumps feel a bit too hard for those who haven't set their navigating skills to the max (like towards the flags).
I agree Meaninglezz once more; the pool with water feels weird. Perhaps some grate would fix this.
It's a nice attempt so far and looks like it could be potential. Keep working no it!