Being in a place that is so unique, so large, yet so narrow is just an incredible experience. Slot canyons are fascinating no matter what time of day you visit, no matter what day in the year, and regardless of whether you brought a camera with you. Both of those factors will play a significant part in how your scene unfolds and what options you have for maximizing your position and the available light. The sunlight comes in from different directions based on the time of year and time of day in which you are visiting the canyon. The time of the year plays a big part into how your pictures look.
The thought process behind compositions really becomes something else because the innate question is always how do you capture the same subject, in a similar location, as every other photographer who has been there before you? Fortunately, you have some incredible forces on your side. Realistically, the fact that there is much less room to move creates a unique opportunity in and of itself.