Very nice looking tank and yes your dat is an IT.Dats are lurkers,ambush predators and they like to hide so in your case I probably wouldn't add any driftwood or you may never see the dat due to him hiding behind it.That looks like quite enough plant cover for the compromise of the dat feeling secure and you being able to observe and enjoy it as it settles in.It is also good that you feed your dat a selection of foods and staying away from feeders but keep in mind that a good quality sinking pellet will show a big difference in growth rate.That is also dependent on you getting the dat to eat them.