RH at 50% would be okay if your temp was around 70 but with carpet in there its going to mold at 83 with an RH of 50-65 id take the carpet out/seal it with plywood but other than that everything looks great just keep an eye on the fungus gnats and mold. and don't get me wrong 70-85 with an RH of 45-72% is great for the girls I'm just worried about mold and gnats with the carpet. what are you using to get fresh air too them and moving air around them? with you temp that high using cfl's I'm guessing theres no air movement?