5 months ago I was training for those 6 pack abs and leanness. When I got down to very low double digit body fat percentages (10-12%) I thought i looked very small. From that day I decided to bulk....
You beast man. For the people saying hes not natural it still takes years of hard work and dedication to your diet to look like that. Its not like you go to bed normal take a pill and wake up looking...
I wouldnt cut yet to be honest, just start lifting heavy and eat clean food to fill out more. Id give it another half a year before id advise you to cut.
Thats great progress, you look bigger in your last picture than your first picture so i wreckon your just getting rid of fat. Personally I wouldnt go down the road of dirty bulking stick to clean...