Troy - Age Timeline

Man I've been wanting to do this forever! Finally sat down and quickly whipped up this age chart to show Troy's current models! 
I don't know if you guys could tell that I 'tried' to make Troy look more 'baby-ish' in the first issue...? My style keeps developing slight differences, and I'm worried I'm not keeping the continuity as well as one would hope! 

Anywho... a look at how I should have drawn Troy so far Adult Troy is the new version of him I will be updating his old Reference sheet with!