Info seems to match the lamborghiniregistry.com info on the #28/150.
Custom paint job is indicated as being $250.000 (not counting the car)

Here is some info on the artist from the artists web-site.....
Christian Riese Lassen is Hawaii’s premier marine artist. His paintings and sculptures are displayed in galleries across the United States and Japan, and his images grace an eclectic array of merchandise, from greeting cards to jigsaw puzzles, wristwatches to scuba gear. Meticulous and imaginative, Christian’s paintings depict an idealized vision of the natural world, and in particular the ocean he so loves.

A greeting card / puzzle painting on my car Guess NOT

To me the Diablo is a work of art all by itself......