I've found that the Krylon clear gloss will frost and crackle your clear parts as well, and there's no going back from that. I've tried.
Looks like you had some luck with the decals on that build though. It looks really good.
Decals will lay down best over a gloss cote, and you may want to invest in some Micro Sol and Micro Set solutions. You will have better results after you invest in those solutions. They are still the best out there.
After that, you'll have to simply dull cote the finish.
Something to consider for the future. :)