This is a man with throughly dark hair. He is wearing a brown coat that goes down below his knees, as well as a light blue shirt. His facial expression is focused and intense, as if he is deep in thought. He is holding a tool, a hammer perhaps, and looks like he is trying to invent something. He stands on the edge of his lab, a desk with a lit lamp, and unfinished drawings scattered across the room.
To color this image, I suggest using cool shades of gray, blue and brown to create a bright but somber atmosphere. Start with a light gray background to give depth to the image and provide a perspective of the lab. For the man's clothes, use shades of brown ranging from mid-tones to a dark rich brown. His hair should be done in a deep black. Add pops of blue to his shirt, focusing on the details such as his buttons. The tool he holds can be done in a medium silver shade. To complete the scene, use warm yellows and oranges for the lamp and light outlines of white for the unfinished drawings on the desk. Colour the entire scene in warm, earthy tones for a soft but adventurous atmosphere.