that looks like one of those iquana kingdoms or worse yet it could be a hampster cage?
both have problems. the problems are humidity and heat. they don't hold either.
even an aquarium with a plexi glass top would be a thousand times better. you can do that for about 60 bucks total ($25 petco aquarium, sheet of plexiglass cut to size at home depot, $35 tops, probably a lot cheaper). of course that is just a starter cage, you would need a new one soon, you just don't want to put your baby in a cage so big that you couldn't take care of either at this stage of your monitor keeping.
if you have any other questions about specific husbandry don't be afraid to inquire here. we would think less of you for not asking, not for asking.
andrew