If you go to the Painting section of these Forums and tell the members what kind of issues you're having, they will try to help you. It would help if you have photos of the model that show the problem. That will help them to give you the help you need.
Hang in there. Help is just a bunch of keystrokes away.
Jim
Main WIP:
On the Bench: Artesania Latina (aka) Artists in the Latrine 1/75 Bluenose II
I keep hitting "escape", but I'm still here.