In the first moment I thought the first screenshot is from island
The map looks good and I like to see that you used clip brushes in some parts. Very nice.
I don't like the mid area, though. The mid area is THE area in this map where people see each other the first time and what all players need to use. So where's the point for using so much ice there? That they just say "hallo" and "bye" while sliding over the ice? I would like to see that aiming is more necessary in this area. Don't destroy your maps with useless ice parts
Please add "angle" "#" to all player spawns, that people don't look in front of a wall after spawning. Use this key always for player spawns.
Never use water at different levels!
Most of the alignments are well done. Nice work
Last a few screenshots with stuff you need to work on for the second beta. You need to fix/align most of the stuff for both bases...
Use blue lamps intead of red lamps for the blue base.
It's way to dark in this area.
Rotate this face.
Red: The wood at two lamps is misaligned a little bit.
Blue: Don't rotate the lamps here.
Misaligned wall texture. Looks like you rotated this texture, too. Rotate it back and it should be aligned well