pruning serissa

I am officially new to the world of bonsai. Previously an avid ( and currently) cacti owner. I decided to go from the least attention needing plant to one of the most. :) I just bought an azalea tree in a mall bonsai art gallery. I'm not convinced this may be the healthiest tree, but I'm going...

I just brought home my first bonsai. Looking at some of the guides online I think it needs some pruning after the flowering period. It still has wire on most of the growth. Any suggestions about where to begin are appreciated! Thanks.