Nope just fine. I have an ambient around 82ish and the hot side is 90 and cool side is 76. Works great. so long as the temps you just mentioned stay around that you are good to go. May need to up the RHP temp a tad to get the cool side a few degrees warmer but that's about it.
Now for something you might not like. Remove that skull. They can get stuck and trust me, you do not want to have to remove your snake from it. Those skulls are not meant for snake enclosures outside of really, really small reptiles of which a ball python is not.