The 2nd shelf is not the same as the bottom shelf but only slightly (they’re supposed to be the same lol)
#background help
steady sonnet
Wait actually make the bottom shelf the exact same as the middle shelf as much as you can
They’re not the same (They share the same points so they should be the exact same basically)
Also for the top shelf
All three shelves will pretty much be the same size and angle (all of your shelves are slightly off/different)
crimson crystal
ohh whoops ill change that, thank you for pointing it out!
minor bough
Echoing what Pandurra said, mostly just perspective issues. Just make sure that lines fall correctly on the perspective grid.