Looks kinda bland imoThe floor should be a little darker, it looks a bit like a giant padded room
pretty dope project. id suggest maybe making the floor tiled instead of just using a single plate like you are now, it'd give it a more polished look and would be closer to portals style. id also suggest checking out swollows RTB archive (http://swololol.com/rtb) and grab some of the old portal add-ons (prints especially)
onProjectileHit>Projectile>Delete ?
is that aperture science or a chase bank
more like labrickories
Die