Looks great. For brighter,true colors back with white. I don't paint rc lids but I custom paint and it's just reverse of painting inside out. I'm actually thinking you didn't spray enough blue,not too much. With any transparent or semi transparent paint,each layer will darken the color or brighten it depending on the color. If I want colors to pop I base coat in bright white. With the shell being reverse that would be spraying the white last. If you're using a pearl paint the base coat (backing color on rc lid)should be dark or black unless you want a ghost shimmer effect. But I think the colors you ended up with are great.