Caeill Revamp

What's this? Am I actually drawing an OC for a change?!?

The big guy is Caeill, a giant who was rescued as a kid by a group of travelling knights and brought to live and work at a military academy, where he eventually became the head dragon trainer (his size, weight and hardiness come pretty handy in that line of work)
The other guy doesn't have a name yet, but he's the grandson of the man who found Caeill and decided to bring him to the academy. And son of the student who was pretty much Caeill's older brother while he was studying there
That's probably why he managed to climb onto his shoulder in the first place. Caeill is not a very grabby person and is a bit too self conscious how his size can easily break someone's bones (he's friends with most people, but some families would love to have an excuse to get the academy in trouble and use it for their own political gain)