I agree. Do nothing! I never held my iguanas except to clean there cage or take them inside and outside, beyond that I never tried to touch or hold them. All my iguanas are tame and I can do whatever I want to them. Cyclura have no natural enemies as an adult. So, once they are big enough they won't be afraid of you anymore. After years of feeding they will also learn you are the person with food. Once again, just let him be!