first off, here are some great forest backgrounds from disney's paul bunyan short. i wish i had known about these sooner.
and secondly, here is an animation and compositing test from the boat scene.
i think that hilda looks too young, so i will change her outfit to a sporty jumpsuit/windbreaker i remember that grandma had. i also remember hilda throwing sidney a banana from inside the boat and sidney missing it. then we watched the banana float away into the sun.
happy late summer!