I'll mostly echo what everyone else has already said:
1. Looks like too much palm on the grip.
2. Looks like your peep should come up a bit.
3. Looks like all of your weight is on your back foot.
4. Looks like you could use a string loop or another 1/2 to 3/4 inch of draw.

your bow arm should not be perfectly straight, it should be bent a little, but not as much as you are bending it.