Very rough, but I wanted to get this up incase it's awhile before I get through the 2nd pass or not.
We're pretty clear on Meelo's personality thanks to great expressions sheets shown during the Korra panel, and this is how I imagine Mako would react to him.
I do kind of giggle at the shorthand of Mako, and Meelo cracks me up.
and gah, I'm out of practice when it comes to animating.