More Iguana info pls?

I finally got an iguana, I haven't seen any close up body pictures of one so I don't know if this is mites or natural, i think its natural, it has green and brown small bumps in its neck which seem to form two rows, it looks pretty natural, is it? It's fine with being captive and it doesn't mind being approached ( but not too close ) it won't harm you but is really nervous, once your hand gets close it runs away so fast, it's hard to try to handle it ( I haven't yet ) it doesn't mind being touched at the tail, how can I make him not mind being handled frequently. It doesn't like veggies, the good ones, but eats a little greens and a lot of fruit, how can I make it eat veggies more. And I know it's still adjusting and is still in shock but how do I make it do something aside from just staying there, anything else he can do? Iguana tips would be very appreciated, and some good websites too. Oh yeah and hes female15 inches what age? what do you insist on this age?