I think if the tilt it has was the opposite way so that it looked more like hes going downhill than uphill it would work really really nicely along with the panning blur. Maybe try a crop like that?
Uhm...yes i understand what you mean and i've already thought about it. But 1. I dont want The woman to seem as she's climbing. 2. I have to check but i think The frame was already too tight. I'll give it a try later.