Dorsi flex = Your toes point Towards your Knee - you do this just before Foot strike so your foot lands Under your center of gravity and therefore you have less ground contact time. Your doing the exact Opposite
Your knee should be getting somewhat higher. Basically it should be at 90deg to your body - not parallel to the ground though - unless your completely upright. Doing the strength drills at the end of a session will help with this, as said in the Spp seminars. Severe lack of height like your showing = shortened stride length = slower.
IN the start - your head is actually Hidden its that far down. You want a nice straight line from your head, across your spine, into your hips, into your knee and finally into your foot. Your tightening up your shoulders and upper back with your head down like that. Not good
Your popping up out of the start, your almost Upright from the go. If you do the GPP correctly, you’ll fix that.
Your not getting Any hip height - that will come After you fix your form, do a proper Gpp, loosen up tight muscles and develop some nice power and strength. It will come, but not running like that 
Oh yeah, the video is a vast improvement, but it never was up until now. For some reason there are words in the middle of it?
If i were you, i would do the Gpp, work on Flexibility and get some Foam rolling done on them Hips, legs and back. Gpp rules. Fix them arms duriing Gpp should be easy enough. Learn to Dorsi flex them feet. In 7wks time, you’ll be a new man.