Hey Aaron, good start. I think I might work on overlaying some of these and focusing on varying your line weight a bit, a lot of the sketches feel a little stiff. In the flashlight sketches it’s hard to tell what the cross section is. If it’s supposed to be circular your ellipses look too narrow and a little football shaped. In the camera sketches try to make sure all of your lens ellipses have their minor axis lining up with the same perspective line.
Keep it up, looking forward to seeing more