I think it looks very nice, that yellow really stands out! On a light colored car, try inking in the panel lines before painting. It seems to darken them just enough to notice without jumping out at you. On dark colors I ink them after or don't even bother. Hope this helps.
I want to replicate my new favorite "young gun" driver Ryan Blaney's #12. Any suggestions on a spray bomb color to approximate the eye-searing yellow on the Menard's car? I believe Stoney has decals for this.
Some say you can put them in the freezer for awhile and it makes them easier to separate. I've not had much luck with that. Depends on how much and what kind of glue was used.
Some of the old threads have valuable information, tips, and tricks. Look at the Randy Ayers NASCAR site debacle of a couple of months ago, they lost a ton of interesting and unreplaceable info.