One of the hardest subjects for me to shoot are the towering redwoods found in California. There are many challenges in shooting these beautiful trees. The first challenge is dealing with a high dynamic range (the difference in light from the darkest part of the photo to the brightest part). Often the sun doesn't reach the ground, causing the bottom of the tree to be in darkness. That contrasts greatly with the bright sky and sunlight on the leaves at the top of the tree. Until they make cameras that have the dynamic range of our eyes, this will always be a challenge.
Another challenge is getting the whole tree in the photo without it looking like it is leaning back. Usually, the forest is pretty dense, and there is no room to back up to get it in the frame. Using a wide-angle lens can get the tree into the frame, but it often looks like it is leaning backwards. Of course, if I had a very specialized lens (tilt-shift), I could stop that from happening, but I don't have one in my arsenal.
In any case, I do the best that I can with what I have, and hope that some creative editing will minimize these challenges. I think this redwood from Sequoia National Park came out pretty good.