This was one of those “taken long ago” that I’ve updated PP several times. There were no eyes visible on either animal, so I just lightened a bit where they should have been. Does it work?
Wow, a really nice scene Connie. Love how you coerced them to stand between the 2 streams . Other important pieces are the grassy slope and bits of grass showing on the lower left, both of which add to the whole scene. I think your lightening was just enough to show where the eyes were. Your image ably demonstrates the challenges of getting through a Yellowstone Winter.
A lovely landscape, Connie and the pair of bison are a nice addition. Their eyes are nothing to write home about under the best of conditions, so your trick worked just fine.