I love the face of this character, I would like to know more about it.
Seems like a perfect character for a space opera.

He is Space Captain Tom, researcher and biologist, well known for studying the anatomy of aliens and acquiring body parts through rather illicit and unsafe means. He's calm and collected on the outside, but will turn on a dime and pull out a gun if he finds himself threatened or frustrated. He's just content on gathering knowledge, even if he finds no practical use to it besides selling the information to scholars.

He looks like a quiet person, but seems dangerous.
Extremely analytical I must add, I thought it would be a kind of mercenary with eccentric tastes.
A negotiator by excellence and a problem for the interspace community.