Go Sando.
Nice blocking mate.
Here’s some thoughts, but as always listen to your instructor first. They have better body mechanics than I do.
-raise the heel on f10 to avoid the leg straightening out too fast.
-overall I think it’s a little fast. Especially when he transistions.
-spend more time around f46-53 as he needs longer to gain speed. (that step to f59 is too far, and then the same on f67 but that one he will be moving faster by then so it can’t be the same distance as the previous step)
From the front view, try to get more rotation of is torso over the planted foot (in the walk) and then in the run reduce this and bring the feet closer to the centreline. The faster you run, the less side to side and up and down there is, and the feet come closer to the centreline so it is more efficient.
Hope that all makes sense. Good work.