Here is Rodan painted. It still needs some touch ups, and add gloss to the eys, etc. If you have suggestions for the color please let me know before I go past the point where I stick the whale on him and stuff..
Very nice paint job! Looks pretty realistic. My only suggestion would be to put some washes over the veins on the wings to blend them in a bit better, they seem a bit too dark to look like they're under the skin.
It does if you apply it right to the sculpey. I think it just sort of corrodes it over time (unlike aerosols that eat styrofoam by immediately dissolving it into a puddle of goo...hehheh) Over top of primer, paint, and sealant you should be fine. I always just stick to acrylic to be safe.