This was done while I was still in high school, so it has some years on it.
My affinity for long arms and long tails is pretty obvious (I may have gotten over the arms, but I'm still infatuated with long necks and long tails).

A nameless human and a generic therapod Dino being friendly.

Boy, I would have loved to have had a buddy like him when I was a kid!

D.O.P.R