Not at all. What you would see is not exploring the entire enclosure as much if it was too small. I think it not as bad of an issue as long as she is not over 5 feet. At minimum you want the length and width total to be greater than the length of the snake which I am guessing is about right for yours. They will explore and use the entire space you provide so while there is such a thing as too big in relation to the coast to heat and well space in your house, they do appreciate the space.

Visually your tank looks amazing and again having a 4 year old is an accomplishment. If you can make it to adulthood and go through the dreaded fasting in the winter without too much anxiety, I say you have mastered caring for a ball python