I'm going to try to guess someone's pup. How about Solloby's?
Things all his previous Staff Dogs have in common:
1. Toes/Socks! (Side note - Almost all his(?) pets have them.)
2. Edited Ears!
3. Something on their back. (A marking or something like that.)
4. Light and Bright eyes. (Lighter shades of eye color and relatively bright shades too.)
5. Edited Tails.
Now here are some pictures!



Here's some second stage:



So, I think Solloby's pup is one of these:




Ok, the second and the last don't have edited ears but everything else fits!
There, thats my guess!
