What paints are you using? I was able to use thinner on a small brush and blend the paints a little when I had a similar issue. Also, you might get lucky with where decals are placed.
I really think it looks great, and you'll be able to hide any visible flaws with weathering, carefully thinned and applied brush painting, or something else.
The only real problem spot I see is near the port wing root on the fuselage. For that, I might try brushing the colors, then thinning them 5:1 and spraying a few mist coats of each color along the edge to tone down the contrast you might get. The lines won't be super sharp, but it shouldn't be noticeable, and it should be pretty easy to spray the area and miss the stripes and underside.
Anyway, I think it looks like a pretty good build as it sits.
-BD-