Red Cliffs/Snow Canyon Hikes

Hello everyone. I'm looking for some hiking options either as a day trip from Zion or on our way back to Vegas. Been doing some research on Red Cliffs and Snow Canyon and have some questions.

Red Reef Trail in RC looks nice. Anyone done it? Is it the same as the RC "Nature Trail?"

Anyone done the Petroglyph Hike with the narrow slot canyon? Is it in Snow Canyon?

In SC, thinking about the Butterfly Trail to the West Canyon Overlook. Is that the iconic shot of Snow Canyon that you see in many of the images on the net?