Crazy, I saw this on Pinterest. Pinned it to my topology reference board too, just so you know.
Anyway, your topology is actually pretty solid. Both the current version and the previous ones. I’ve seen paid models with worse. Sometimes the problem with a rig or it’s pose isn’t topology, it’s weight painting. Or bone placement. Troubleshooting that can be a pain, but I’ve never been satisfied with “automatic weights”
Connecting the ears to the body is what I had the hardest time with. Hands were hard too, but by then I’d accepted the maybe there’d be an edgeflow in the model that wasn’t perfectly neat and I didn’t care. (Probably because I attached the hands after the ears). Though obviously you still want it to be relatively neat.
If it helps, here are some hand topology examples (can’t credit them since I just have a folder of these things).
