I agree. The decals don't look bad from here. Option, short of replacing them, would be to give them another good coat of gloss, then with a very low-tack tape, mask the areas that are out of register and paint the background colour.
Looks good, and I agree with Andy. can't see the out of register on the roundels, and only just noticeable on the fin flash. Shouldn't be too difficult to correct.