This actually looks like a decent - very good paint job. I can't say more specifically, or rate higher than I have because of the poor photo. The photo isn't even poor really, it's just way too damn small.
Look up some high rated vehicles and see what they did differently to you. I tihnk you should get a better rating than 7 for this.
Secondly, consider some more weathering along the front edge of the wings.
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