55g inhabitant list

Hello, just set up my first SW tank a few weeks ago(with established water) and added my first 2 members yesterday. Been doing a lot of research and have narrowed my list down to this, pending your opinions on compatibility.

I currently have-
tiger pistol shrimp
yasha goby

I plan to add(in order)-
cleanup crew(snails, crabs, etc)
royal gramma
2 clowns
flame angel
possibly a lawnmower blenny if this isn't too much of a bio load

Any and all criticism, and/or personal experiences with my wishlist, will be much appreciated! Thank you!
-Dave