Great job, Congratulations! The handle looks unique, and the zipper pockets on the shoulder straps look nice. The oblique zipper seems making the access easier. The way the lumbar support was made to get airflow is also nice.
Besides, how did you reinforce the connection between shoulder straps and the main body? I can't really see it, but the sewing area looks a little small. How did you secure the ladder lock on the bottom of the shoulder strap? Is it just sewed between 3Dmesh and dyneema and top stitched? If so, I would recommend additional xbox or bartacking.
BTW, in my experience, for connecting straps or something onto thin fabric like 210D dyneema ripstop, xbox stitching is much better than bartacking. And it would be better to make these reinforcing stitching through several layers instead of only one layer.