Dude! I think the mirror is awesome! Nice work.
The glass cases look good too, but I think they're more appropriate for the Emporium (the nicer shop Ingo runs in Old Town.), same with the nice potted plants, they're classy and seem more like a rich thing. So this could work better for the Emporium, except that the door would need to be moved over, maybe a window could go where the door is now.
For the pawn shop, we should probably stick with the rougher wooden shelves, with random junk on them, maybe some stuff from Ezio's (was that the hat's name? Or the dude from assassin's parkour) workshop in Minish Cap. Random junk the poor people sold.
Also, for gameplay purposes, we should have a wooden shelf in the Emporium, because there are going to be items Link can purchase there, like arrows and bombs and maybe an ammo upgrade sometime. Perhaps the glass shelf in the center can be wooden with for sale stuff on it, and curve around so when Link isn't allowed in the back room, Ingo can block it off.
But again, that mirror I think is perfect.