Stocking plans for 90 gallons

Hello everyone I am in the process of planing my stock list list a head of time here is what I been looking at



Fish



1 sand sifter gobby

1 yellow head jawfish

1 purple tang or a yellow tang as the center piece fish

2 clowns one black one orange

1 royal gramma

1 flame angel

1 blue yellow tail damsel

1 firefish



inverts



1 cleaner shrimp

1 cherry shrimp

8 hermit crabs

2 starfish one being a sand sifter

a large assortment of snails



If anyone can see any potential problems with the list like overstocking compatibility or if anyone has suggestions on something to consider would be great.