I assume there is no correct answer to this, but when it the best season for shooting in Yosemite?
Different parts of the park are good for photos at different times of the year.
And it also depends further on how much walking you're willing to do.
For example, I'd recommend doing as much of the Yosemite Falls walk as is possible in April, for various reasons, including ambient temperature and hauling camera equipment on your back up as you climb over 2000' to the top.
Another example is the moonbow, which can only be seen and shot during May/June.