Wendy Ortiz
Wendy Ortiz may not use skulls as a main focus but you will find them scattered about in her amazing portfolio. Wendy is known for her mixed media portraits of sultry ladies though among these beauties lurk a few skulls.
I particularly admire the portrait of Rust from True Detective (added even though there is no skull). You can purchase a variety of prints and merch from Wendy’s online Society 6 profile or visit her constantly updating Tumblr account.