In addition to the face images, I've also done some sprite sheets for Jill/Pony, the children, and the bachelors in their different-colored clothes. Here's what I've got so far:

This is Claire in the basic outfit that you start out with. There are a total of 18 different outfits you can get in the game. I've done a sheet for each outfit, they're all together in a zip file.

Here's Jill in her basic outfit, also, and here is the zip of her in all her different clothes.

The face images don't change when you change their clothes, but I did recolors of those, too.

This is outfit #15, the light pink overalls. Download the zip all 18 Claire faces.

This is outfit #7, the periwinkle top and blue pants. Download the zip of all 18 faces for Jill.

This is a sample sprite sheet of Marlin in one of his different-colored outfits. I have a zip that contains four different outfits for Carter, four of Griffin, three of Marlin, and four of Rock. I'm not sure if there are any others.

This is a sample of the child sprite sheets. It's Carter's daughter as a child. Download the zip of all the sheets I have so far, or check out the individual images at the Ushi no Tane forum. (You don't have to log in to view them.) The zip file includes toddler, child, and teen stages for all five daughters, all 5 toddler sons, and the child and teen stages for Lumina/Griffin and Nami/Gustafa's sons. I'm still working on the rest of the son sprites. I may eventually do the animals, too, when I have time.