very good! i really like it, it looks much cleaner...
what you need to work on now is finding the right background pic for a shot, and matching the colours of your planes, so that they 'fit' the background a bit more. try finding some slightly higher res backgrounds too

try
http://www.morguefile.comthey have a really big archive of copyright free images of just about everything, it's where i get a lot of my background from

once you find a background, try fiddling with the layers that contain your planes and make little adjustments to try and match the colours and lighting of your background. you're doing really well so far! keep it up!