Perhaps a few too many stickers?
Or a bit thick looking and clean? If those are the stickers available online on eBay and a few other sites (I forget the makers name) then what I did for my last build was get some very fine sandpaper and carefully sand the stickers down from the back. So you get rid of the glue and a bit of the backing paper.
This makes them a lot thinner and you can just secure them with a tiny smear of glue and they sit much more flush with the paintwork.
Just an idea.
Alex