Rook470

I'm working on a TKC helmet, and before I jump off the cliff so to speak I wanted to post a few pictures of the masking for the stripe down the right side of the face. Are there any changes I have to make or is this acceptable? Forgot the teeth in the first picture. and last but not least the color that I'm going to use.

My question branches off of rapstertee's, sort of. What type of paint is best? Rattle can or brush. Latex (or Emulsion for those across the pond), water, acrylic, or oil based. Flat, Matte, Semi-Gloss, Egg Shell, etc. I might be over thinking this...