In addition to launching All-New Ghost Rider in March with writer Felipe Smith, Luther Strode artist Tradd Moore supplies the cover for Secret Avengers #1. But first he knocked out some incredible character sketches of Nick Fury Jr., Black Widow, Spider-Woman and M.O.D.O.K., who are all featured in the illustration. Needless to say, they're pretty awesome.
Check out the cover, and his Black Widow sketch, below. You can find the others on the artist's blog.