You're up to the really fun part now. Start adding in corals from now on, gradually as you find things you want to buy. Your tank is still going through its algae phase, which new tanks do - so just be aware that over the next few months some coral additions may not do as well as you would like them too, results vary from tank to tank. Once your tank is 'established' or older though, it will get much easier to keep everything happy.
From your pics there is one thing I've noticed that would be worth looking into - you have a decorative seaweed in your tank called Halimeda (on the left hand side). And you also have a purple calcerous algae called Coralline algae on some of the rocks. I would encourage both to grow so they can compete a little bit with the less desirable algae - to do this they need calcium. Do you have a test kit for calcium? I'm not personally into dosing the tank with many things - but calcium is a very beneficial one. Its very easy to drip feed calcium into the sump, buy a supplement to dose manually or there are other high tech ways (such as a calcium reactor). Or you can just rely on water changes. You want to keep your calcium above 350ppm, up to 440ppm is ideal.
Some reading for you:
Halimeda -
http://reefkeeping.com/issues/2004-04/nftt/
Coralline algae -
http://forums.saltwaterfish.com/t/388860/snakes-methods-for-growing-coralline-algae
Kalkwasser - the simplest method I know is using hydrated lime from Bunnings -
http://atj.net.au/marineaquaria/kalkwasserdripping.html
For corals - a nice well thought out mix of low maintenance LPS coral, soft coral and things like corallimorphs, zoanthids and star polyps would all go nicely in the tank. If you want a more established look, go for a few larger pieces that are talking points first and go from there.
Some of my favourite LPS corals that are quite forgiving and keep their colour even when in less than ideal conditions are Acan lordhowensis, Scolymia australis and Blastomussa wellsi. I would suggest an Elegance coral but I'm not sure how one would go with the lions - the Elegance get quite big, can sting and have been known to (very rarely) eat the odd fish. They are a magnificent looking coral though. With all of the decorative fins on the lions I can just see an Elegance and a lion brushing past each other regularly and am not sure if that would cause a problem for either.
A large brightly coloured colony of Acan lordhowensis on the sand bed at the base of a bommie would look fantastic. If you can't find one large enough, you could group a few smaller ones together of different colours.
If you would like a list of possible suppliers shout out and we can all pitch in with coral vendors we'd recommend.
