they look better than some of my car builds. about 95% are "junkyard builds" (I love rusty old cars) so when I do a "new" car, I can't get the paint to work out, especially with 2-tone or multi-color schemes. I'll try to post a photo so you can see what I mean.
I've never seen a pink Shelby before, it looks like it came from the 50's, when pink cars were normal. It acually looks great. I don't see a whole lot wrong with it.
I say, go ahead and finish it, sand down any rough areas or areas that don't look too good to you, and mask off everything but the areas sanded, and re-paint it with the can of pink. That looks exelent.
For the blue one (I assume, eather a Stingray or a Corvette) that will be tough. I have never had experiance with a wrap-around windshield, or anything like that car body, so all I can say is, try to remove the body, sand the interior down some, and dry-fit it untill it sits right. Then, remove the windshield, and try to sand the fogged area a little bit, and dip it in Future floor polish.
I can't help with the windshield problem, because (as said before) almost all of my cars are junkers of some type, and eather don't have windows or windshields, or have shattered windshields and lots of cracks.