This is a Sailor Neptune resin model kit that I assembled and painted. She was painted with acrylic paints and sprayed with a glossy finish. I really love this model as it portrays her doing her "Deep Submerge" attack!
You can do it with airbrush to control the opacity of the paint you want to apply. If you don't have one, you can paint it on with a brush, let wait until it's semi-dry and then take a paper towel or cloth and wipe the excess off leaving that clear-look, but not too opaque... I hope this helps...
Thank you!! I buy them from ebay, I make sure to read the feedback first to see what others have said about the quality of the resin. Thai resin is good. Sometimes the parts don't fit accurately, so you have to sand them down to make them fit, but I haven't really had to do to much sanding.