The palms of the forepaws, demonstrating sexual dimorphism. Male is on the left; female is on the right. Both males and females have digital pads (on the fingers and thumbs). Males have a single palmar pad, while females have several smaller palmar pads that surround a lactation patch.
Females can excrete milk at any time when the tissue on the lactation patch is exposed to saliva. When nursing the saliva comes from a kit licking the palm. Clerics gather their own milk by licking their own palms and soaking the milk up with a sponge. The milk is wrung out of the sponge into a container and blessed. Blessed milk is usually sprinkled by means of an aspergillium which is held in the cleric's tail.
The proportions are pretty bad. The digits aren't that stubby, and I'm unsure about the length of the palm. All in all though I'd say it's pretty good given my unfamiliarity with digital drawing.