IMO
Looking good.
This latest photo is probably the best. I think I'd get more ground cover and let it grow in. And possibly move the wood forward a tiny bit.
Gonna hate me but, there is something I like about the original photo. It seemed to be more focused than the following setups.
Most of the tanks that I think look really nice focus on 2 or 3 dominant plants and then a few oddballs scattered about. I think that makes it look more visually appealing and natural.
If you add any more plants (I think you said you were going to), I would try getting more of your favorites. I wouldn't buy any more different plants.