Actually, I thought the lightspam was dazzling and interesting- it can certainly be done for a good effect. The architecture of the double-storied room looks interesting, minimalistic in an alien and eerie way.
The simple, square rooms should be done something with.
All in all, although boxy and beginner- ish, the map looks oddly atmospheric and gloomy, and minimalism could be kept to a great effect, just make sure to keep all the rooms interesting.
I like the open, double floored room shown at the top, and the ones with the rusty and white textures.
Lava, whatever you think of this map, you don't have to be such a cunt about it.
By doing so, you are always risking discouraging a potentially good future mapper.
Shut up and fill these forums with pretty maps.
This probably applies more to you than any other person having posted in this thread.