Now, it turns out that there are a number of options for people looking for sheep in 25mm scale, and they vary in quality. The only ones I could get in time were from Old Glory, and I confess they look a little goofy. Their faces remind me of sock monkeys. I've promised to upgrade at a later date, probably to Foundry ones, though she is already a little attached to these guys.
The base is MDF, the groundwork is Sculpt-a-mold, and the water is simply hand painted and coated in gloss finish to give it a watery shine. Various sources for the plant life.