Jayem, I used yellow cans because there's a similar display in another scene, and I just wanted to put in there to thematically link the two scenes together. I already shot the scene, but I don't think it gets too much into the cashier's face. The minifigure in the picture is actually a stand-in!
osom studios, good suggestion, but this is an early picture. After this photo was taking and before shooting, I filled those shelves (and the brick on top of it) with 1x1 round plates to represent candy. But I'm kind of a fan of exposed studs so if those shelves were going to remain blank, I'd have removed the top brick and probably left the other shelves' studs exposed.
Jampot, I don't know. I kind of like the brown in the floors along with the brown items. I think it's fine as it is.
"None practice tolerance less frequently than those who most loudly preach it."