I really dig this, despite it being just a sketch, these two characters here seem to portray a lot emotions just by their body language and facial expression.
I also like the style of the hands and faces, it reminds of the style they made the Disney movie 'Atlantis: The Lost Empire' in, and I enjoyed that movie very much! Hopefully you'll post a full version of this here with a setting and maybe even a whimsical story between the two people!
Sincerely,
The Doctor