With no provided context or timeline for the photos, their comments carry no meaning.
I look different after the end of a long sustained weight training regimen then I do after a week or two of little to no weight training.
But really Vitor should look a little different regardless, it would be more questionable if he did not because he is no longer supplementing his endocrine system. If Luke and Chris had their endocrine system production decreased or halted, the same could be said of them. This just seems like low hanging fruit stuff more then anything.
I like MMA less because of this forum