What size tank have you got a Kole Tang needs 75 Gallons roughly
Dragnet Mandarin needs a lot of Copepods can be kept in a 30 gall tank but will need to feed the tank with pods on a regular basis
Hawkfish + Maroon may be ok but in a smaller than 75 Gallon tank I think the hawkfish would be hassled
Damsel and Maroon would not like to call that one both are aggressive which might cancel it out or might be all out war.
The Maroons are a very aggressive species that I have seen these having a pop at bigger fish not really a good fish to mix with others.
There are far nicer looking clowns available which are
a. Smaller
b. Less Aggresive