You are off to a good start. What material are you using for your sculpting? If a two part apoxie type I would recommend either using some rubbing alcohol to get a smoother finish. If you do not do that then you need to sand it a bit before painting. If you are using baking clay, then you can use a little water to smooth it out and then sand when baked. Painting wise you have some great color choices, you need to thin it a little and do layers to avoid brush strokes. Best of luck and I look forward to seeing your future work.