At Ricketts Glen State Park, the waterfalls are generally falling over rock faces that have no trees on them (for good reason of course). This means that getting colorful fall foliage in your images requires some effort. That colorful foliage is often found above the falls, which means shooting with, at least some, upward angle included in the shot. Upward angles that do not include the bright sky become more challenging.
In this image, I zoomed in to frame just the top of the highest waterfall in the park, the 94' Ganoga Falls.