Work in Progress: Second Repaint Ever! Game-accurate Breakaway

Ok so this is my second transformer repaint and it's not done yet (need to add some more details and fix some parts) so any advice or input is greatly appreciated. Oh I am also wondering how you guys might suggest doing the camo parts - freehand? stencil? Anyways I used a basecoat of dark grey, dry brushed a dark metallic grey on the bot parts then dry brushed a lighter more silver grey. Painted the jet parts khaki then dry brushed a mixture of the khaki, white, grey and green. Also gave the jet parts a black wash trying to make it look a little beat up with mixed results - some of it looks ok and some of it looks like I messed up. Thanks in advance for any comments/pointers and just for checking it out.