Let’s start with the one circle for the lens and eye shape for Stuart’s face.
Next, draw in his lid halfway closed and then draw the half-eye (iris and pupil).
Surround the eye and lens with Stuart’s head shape like so, and draw in his pieces of hair in a combed-back style.
Draw in the band that holds his lens to his face like so.
Now draw in more of Stuart’s body. This should also include the left arm and the straps from his overalls jeans.
Continue to draw the overalls and then draw the front pocket, and side pockets for the overalls as well.
Lastly, finish drawing Minion Stuart by drawing the rest of the body shape, his legs, small feet, arms, and gloved hands. Erase your mistakes when you are done if you made any.
This is the line art like so. All you have to do now is color him in.