I wonder if I can do any face exercises to achieve a more feminine facial look. The problem is, when I attempt to roll my lips in and lift my cheeks up, I notice other muscles (including my eyes) contract as well and I cannot isolate the muscle. Is there any hope?

Well, a quick search on google didn't bring up much about feminizing facial workouts...there's lots of makeup and makeover tips, though!  If I had to guess, I'd say that anything that plumps up the 'apples' of your cheeks (just below the eyes) would help, as well as anything that can help accent your eyes.

Learn to relax your jaw.  Keep your teeth apart when you have your mouth closed.  It makes your lips look poutier and more feminine.

Don't know about face exercises making you look more feminine but there is a good reason to do them - certain ones give the face better blood circulation which means better skin, and others can reduce the appearance of wrinkles and such by keeping the face and neck muscles fit. But you have to do them until they hurt, every day, to see effects.