Quake Live - Space Chamber

First try at isometric pixel art, had to think of something to do so I decided to create an isometric recreation of my favorite map in Quake Live, "Space Chamber". Browsed through couple tutorials and I think I'm doing it right. Sprites are fail though, if it's hard to recognize theres supposed to be Daemia, Tank Jr. and Doom Guy. Items laying in the ground are personal teleporter and rocket launcher.

I did not even try to put restrictions to the colour palette.
Here's the reference: [link]