It all looks good. I gather the top goes on like a pullover, then the bottom is pulled up and zipped to the top. Probably easier to get into than the cross back or cross chest designs.
My only concern would be where that zipper is going to land. Make very certain it isn’t digging into something in your back. Ask yourself what will it feel like at the end of a long day of paddling. Something that is vaguely irritating while sitting in your kayak at home, could get a lot worse with hours of paddling.