The Tomb Explorer

It's a one-panel horror comic. Watch out what happens when you disturb the resting place of the dead! I may try to do a full 6- to 12-panel horror vignette based on this drawing, but for the present I just wanted something fairly easy that I could mess with as a Photoshop experiment. This is my first time to work with Photoshop to do coloring and shading, so I hope it turned out OK. Please feel free to give me some serious critiques on my PS technique. This stuff is new to me and I was definitely stumbling through it.