+
Attempt at adding detail.
+ Effort in sophisticated level architecture.
+ Nice layout.
Not a bad map for a beginner, if this is your first release I'd defiantly say your above par in terms of quality, my first map was way worse. It was a bit bare ofcourse and overall it was linear, but still decent none the less.
You made some attempts to add detail such as the poles and what looks to be a dumpster, plus all your lights had a light source which is something alot of new mappers forget.
You also put in a decent effort to have interesting architecture. You had a few interesting slants and quirks with the cave geometry which is good and I saw attempts to make the geometry more interesting and detailed in other parts of the map, not everything was box like.
The layout was nice, I can see myself having some fun on this. I thought you could have done something more interesting with item placement throughout the map. What is the reason for players to go into the caves? Perhaps you could have done something interesting where all the ammo and weapons are above ground and maybe the health and shields are below ground, so players will have to keep constantly moving. But what you did was fine.
You had misaligned textures especially on those ladders and lights, just watch out for that, they look pretty ugly and noobify the map. You also didn't have a single sound effect. Always try to add ambient sound effects to a map, they add atmosphere and immerse the player in the environment much more and just enhance the experience in general.
Anyway, its pretty apparent that your fairly new at mapping, but this is a decent map, you should feel very proud if this is your first or even second map. Just remember to add a bit more detail next time, spend that effort making sure the textures are all aligned and think about what your adding, if it can be done better and what effect it will have on the map. Also add ambient sound to the next map. Don't be afraid to add that extra effort to polish and refine the map, it certainly shows. Quality is more important than quantity.
Good stuff, I think this map deserves a 2.5/5 or a 3/5 which is a pretty high score actually if you think about it. I look forward to your next release