i would definitely add more folliage & another hide on the bottom, maybe a ledge or two as well. they like eating their food elivated as well. also, i would HIGHLY RECCOMEND not putting two cresties together until you know for sure they are both female. if you have two males together, maybe not at first, but trust me, they will eventually fight. so if you dont want and loss tails or tail nips and all that I would house them seperately. you can house a male & a female together, but you will eventually get eggs. & seeing as this is your first crested gecko, you are no where near ready for babies, plus your cresties are too small for that & breeding at that size can severely hurt a female crested gecko.