>>11320261I've done decals for Lego from decal paper before. You're gonna want to paint the tail white then put the decal on for best results. Printers assume you're printing onto a a white background, and unless you silkscreen a white layer onto the decal paper the decals won't look good otherwise
>pic related: some test decals I made up using a home printer a few years ago >I also did a set of decals on white tiles that looked great but I can't seem to find them