Still-Life Drawing I with Spatial Illusion

My 4th completed drawing from college. This was a still-life drawing w/ spatial illusion. Along w/ shading, we also used the grid system for the first time to ensure proportionality. We did 2 still-life sketches but only had to submit one as a completed drawing, and this was one of them. The objects chosen were my ballcap, "Darth Vader" helmet, my brother's small jewelry box that he left behind, and my fedora brim hat that I usually wear with my black colored suit.