So how long have you had your gecko? That looks just like my tank when i forst got mine. (even the same log lol) I would go buy some plants or something, looks pretty bare. I saw 6feet of vine for 10 bucks.
i put a wet papper towel in his log for humidty not sure if i need to i live in north ga its humid as hect here and i always have the window open in the room they are in i added vine after i took the pic also makeing a cave with some rocks i found