Well, it is the final element in the picture that gives it the special quality that makes it all its own. Third element shots are rare. When you do one you will know it. Try a different angle or light position. The Trip Designate photo trips.
Trips designed for cave photography have much better results.
Try to keep this to a minimum. Repeated trips with the same assistant allows for speedy and efficient trips without much down time. If there is a person in the frame, ensure they are comfortable and safe. Keep them from falling down pits in excess of 30 feet. Over dress in wet caves.