OP You have some very nice stuff, nicer than a lot of things in those categories here. But frankly (not to be mean, just frank) some stuff is passe. At least to the crowd that's still spending money in July.
I used to work in a ginormous thift store with three huge floors. The basement was full of collectibles and knicknacks and items rarely sold. People liked to browse but not buy much. The second and third floors mostly clothing and books where only the BEST quality or popularity items, like 1%, sold.
That place is still there but they sell 99% practical stuff: tools, useful kitchen things, toys & lotsa seasonal. Books don't even sell any more! In this environment, not what it used to be, you might need to shift or diversify. Best of luck 
