Clemente has worked in just about every type of painting medium imaginable. He lives in both India and New York. Originally from Italy his work has been lauded for over 40 years. He also has an excellent website where you can go and read far more intelligent information than I can provide!
Tomaselli is known for using odd materials with epoxy. Below is a piece, Wow and Flutter, where he used acrylic, leaves and resin. Hmm what kind of leaves ARE those. Well, he is from California.
You may recognize his name from album cover art (I personally recall Magnetic Fields' i, which I listened to quite a bit...."I don't belllieve you..."