Pretty nice, indeed...
Screenshot of my level:

As you can see, I like putting up some of the pickups before the level's layout is done.
Ammo That I decided to use in my level:
Seekers, Bouncers, RF's and toasters.
The powerup for the red team is the toasters, and the powerup for the blue team is (haven't decided yet, but it's probably gonna be either RF's or Seekers. :p)
As you can also see, I changed the textured background to a slightly more blue-ish shade of Grey (that fits my level more imo).