I think you should try and do some chops that aren't side angles and try to avoid studio backdrops. You should get more comments then and they will help you improve. I used to chop like you, never hardly changed backgrounds, only chopped side views. I never really improved when I was chopping like that. Then I started using 3/4 angle bases and changing them to have nicer BGs, and I improved my skill level rapidly.
Just some suggestions!

I like the style and colour scheme of this though.