I'd get the clown pair, and the flame angel should be your last fish added around the 6 month mark. They like to nip at the rocks and this allows your tank to grow some stuff for them and the param's to stabilize.
All the previous fish rec's are great.
I'd look into a flash wrasse as well. I think they have the best personalities. However make sure you have a mesh top with zero holes, or they will jump.
I'd steer clear of any other damsels besides the clowns, they are bullies!