It’s the Revell 1/29 X wing fighter that is pre painted. I sprayed it with Rust-Oleum metallic silver paint and gloss coat. Then I painted various other details using both Testors enamels and Vallejo acrylics. Then I used black oil paint thinned with mineral spirits for line accent. I would paint it overlapping the lines and use my fingers and thumbs to drag/wipe the paint away, leaving it in the panel line and creating a streak.