Couple character portrait scketches needed

I'm making a scifi adventure game, where I need a portraits for the main character Drake. Though I do most graphics myself, I'm bit sucky drawing good human faces with different expressions or designing them fully.

Request
What I'm after is a person who could sketch a raw face portraits of Drake with several different expressions. Sketches can be made with computer or pencil, as long as they are recognizable. I intend to draw over them so you don't need to be very spesific with them as I will do the actual coloring and details and such. So basically I'm asking you to do the basic layout of the face.

Details
Here I will describe the character and different expressions he should have. Mostly Drake is pretty ordinary man, and he has dark brown or black hair which is relatively short. His age is something between 30 - 40. He may have some stubble or short beard too. Style should be somewhat realistic so no anime eyes or anything this time

Needed expressions are normal (a bit serious), smiling, angry(shouting), astonished, frustrated and doubtful. I advice you to first draw the normal expression and post it here for me to see, so I can offer my opinion for it and possibly make some changes for it as I don't yet have very spesific guidelines for his look. This way you avoid the needless work too

More of the project
As of now, there isn't much info about the project online, but there is pretty good summary of the game's storyline with some discussion here: http://www.adventuredevelopers.com/forum/index.php?topic=2376.0 Be prepared for lenghty description even though the game is relatively short though...

Feel free to ask more about the Drake or my request if it helps

Thank you very much!