LOVE the first one, eyes are crisp and clear, great expression, good choice of shirt! Don't care for the second, it's the hand on the chin, to Glamour Shots. Casting directors look for real person personality. They want to see charachter, and they always go for the eyes first. The hand on the chin, or any where around the face draws away from the "seller" point.
I aslo suggetst keeping them in color. Traditionally actor's headshots are Black and White, but color is really makeing a new mark in the industry and can really stand out (especially with those blue eyes) against the "tradition".
Alicia
My Charachter Commercial Headshot