Watch your perspective, it's not making sense currently:
The boombox's sides have different vanishing points, and the tape seems to get wider on the side away from the viewer. The boombox and tape also don't seem to be on the same plane.
Objects on the same plane share a horizon (but not necessarily vanishing points - those depend on the objects' orientations).
Alternatively, use a parallel projection instead of perspective. In a parallel projection, lines that are parallel in reality are parallel in the drawing (so the boombox's sides would all have the same-slope lines, for example). I think for something at this scale, it'd look better to have (correct) perspective though. Parallel projections look fine at small scales, but look uncanny at larger scales because viewers have a better idea of what those things should look like (with perspective).