Your setup looks good. Only suggestion I have is put ur thermometer in the dome too if theres room. And if its getting too hot (over 85°) just put a towel over your heating pad but under your propigation tray. It acts like a nice lil buffer so you dont fry your clones.
With the vents I leave them closed for 5 days then ill open them a 1/4 of the way. If they dont droop ill open thrm more to kinda ween them off the high humidity. If the droop ill close the vents some.