First things first BEFORE you mess with the draw length you need to fix up your body alignment. Assuming the fence behind you is straight, you are leaning back. Your upper body/spine and shoulders/arms should form a "T", they should, again assuming fence is straight, your upper body should run parallel to the slots in the fence, it looks like you are leaning back.

Once you have this fixed, ya, your bow arm is bent to much. I am a fan of a straight bowarm, not over extended/locked elbow, but straight with the bow arm shoulder lowered, your bow arm shoulder is raised up. Straightening up your upper body will buy you back a bit of draw length, but it does look like you are to short. Extend the draw length in the smallest increment you can on the cam until you get good alignment with your upper body/T position and your draw elbow comes down to be in a straight line from the elbow through the bow arm.

Can't see the grip all that well, but it looks like you MIGHT be sitting the bow to deep in your hand, it ideally should be in the meat of your hand, between the thumb joint and the first major line on your palm.

all that said, the most important thing shooting the bow is CONSISTENCY. The above gets "text book" form, which isn't necessarily required to shoot good, its just the easiest to be consistent with. Whatever works for you is what is right for you, these are just some things to try.