Definately looks like it has some lewisi in him. As far as the rest of him being either caymanensis or nubila, it is hard to tell with out a full body shot. As far as people selling lewisi mixes, be wary of those with large clutches. Normally a more "purer" lewisi lizard will have smaller clutches of good eggs, although they may lay more. Two years ago, I only had one good egg out of six. Last year I had none out of seven, and this year only one out of six again. I originally bought my pair as pure lewisi from Robert E. He was sure they were pure when he sold them to me until he got some DNA test results back from Texas A&M (I think) saying there were traces of something else. This floored Robert and he called me to tell me the bad news. He did make it up to me, and I still have a very nice big, blue, tame pair that look pure. Actually the female is very small, but then so were the females I saw on Grand Cayman at the Botanical gardens were the breeding facility is. She holds her own with the male though, nipping at him and chasing him. I'm glad it's not reverse. I'm hanging on to my babies for now (one female and one ?? egg)and start a colony, and possibly lend them out for breeding loans in the future to lizards that look high blue or pure. I was told, that my pair probably has some caymanensis in it because there was a single caymanensis that was kept with a group of five or six pure lewisi at a sanctuary for one or two years, 20 years ago in Florida.