3D modelling FTW!

I was bored (a.k.a. sick of coursework), so decided to make a little 3D scene. This was to be different from my other 3D work (see figures 1 and 2) because it would be more than just a single object. Unfortunately, they tend to get boring. It's all fine and good copying something down from real world, but there's no sense of creativity. Scenes solve this problem, and figure 3 is the result.
Here are my previous works, in chronological order:

1) A controller I bought at the car boot sale for 20p. It actually makes Super Gem Fighter: Mini Mix much better; but outside of that, it has almost no use whatsoever.
Figure 1:


2) A DS Lite. Not mine, you understand. My brothers. I still haven't made the jump, but I will eventually!
...I think....
Figure 2:


3) It's called 'Assassin in the Snow'. Nine hours of work compiled into this one scene. Some critisisms so far have been how feminine the assassin looks, how out of place the trees seem, and the lighting. I won't fix these issues, since it will be interesting to compare this image with my next one (probably a guy getting his throat slit)
Figure 3:


Please leave a comment with any improvement suggestions you may have ^^