Cool map. Looks nice. I hope you are interested in improving the map until it's ready for final release this time.
Sun lighting looks a lot better than the lighting you used for barena_b1.
Add "angle" "#" to the player spawns, that players don't look in front of a wall after spawning. It's kind of annoying, even if it's just a dm map.
Because you are using a sk89q tree model, add "requiredfiles" "scripts/sktrees1.txt" to the worldspawn. After that people without the tree model will be able to download the necessary script as well if it's uploaded to the server.
The barrels are a bit too wide, that's why the top and bottom textures aren't aligned well. I'd create them with a diameter of 48 units. Then the textures should fit perfect.
Red: I'm not sure if my script is broken here or if it's a problem with the map/model. Does anyone else have this?
Red: The plank overlaps with the box here. Might want to move it back a little bit.
Blue: Rotate face by 90 degrees.
Red: The DP logo is backwards, you need to mirror the two faces. Use a negative SX value at the surface properties for that.
Red: Sometimes the high brush blocks me while running this way. It's pretty annoying. You should raise up the brush and make it lower later in the middle of the tunnel.
Blue: Not sure, but it looks like the high part of these passages aren't centered well. Hm...maybe I'm just looking bad. I'd check this in bsp, should be very easy to notice/fix.
Blue: Wrong texture.
Red: This brush is very annoying, too. It often blocks you while using the ladder. I't make it a lot smaller.
Red: This brush overlaps with the ground.
Blue: Would be cool to add some stuff there. Maybe a few boxes where you can also go high.
Blue: Wrong bottom texture.
Yellow: I'd add clip brushes there.
Red: Texture needs to be rotated.
Blue: Would be cool if the way in the opposite direction would be a lot easier. Except of the right side, the brushes block the way.
Blue: I'd add clip brushes here, too.
Red: I'd add clip brushes here, too.
Blue: Inside the barrels there're some top and bottom textures of a barrel. Make sure to use the correct textures inside the barrel.
Yellow: The plant overlaps with the wall. I'd just move the barrel a little bit.
Red: Wrong texture.
Red: Rotate this face.
Red: The black plant looks ugly. I'd add one more light there.
All in all a great job so far.
Map is online @ [OTB] Beta!