It looks nice Wayne. Thanks for posting! May i offer some observations that jump out at me?
1) tail lights: only the top left oval has a red lens. The lower left and both right lenses were black in appearance. Both lower lenses were rectangular slits within the oval.
http://i45.photobucket.com/albums/f74/ericadeane/leftlight.jpg http://i45.photobucket.com/albums/f74/ericadeane/rightlight.jpg 2) try to even out your mud application. the liquidy mess would cover everything. Perhaps use a thinned version of what you previously used and cover everything else below the sponsons. I'd add some splattering effects too. Cut down the bristles of an old brush and load it up with your mud paint. YOu can shoot it with air from your airbrush -- notice the irregular splatter that occurs. This would be great for your hull sides. Alternatively, you can simply flick the mud splatter with the tip of your finger across the bristles. Practice on some paper -- I think you'll like the effect.
3) Also, the tarp on the lower rear panel is oddly clean; muck it up too?
4) the charging handle on your .50cal MG is too far forward. Google for pictures on where it belongs
5) DML's instructions forget to tell you to fill in those four vertical slots on the corners of the rear bulkhead: they're leftovers from the M4A3 VVS kit where track stowage was located. For you, just fill in with mud.
http://www.toadmanstankpictures.com/m4a3105_12.jpg In this pic, those two indentations aren't there.
6) your antenna base appears to be guitar string or a spring? I've got plenty of spares if you'd like one. LMK
Hope these help! Keep up the great work!