Love to see your style evolving, and this was a really cool step in doing so. So much juice and beautiful particles, I particularly liked the cool effect when you shoot the hooks! Characters were adorable and blended well with your minimalistic aesthetic. When I got the hang of the mechanics, it was super satisfying when I got to throw the enemies around. I definitely was left wanting more - in a good way - as I think it would be awesome to see this fleshed out more; the base of the game could open itself up to a lot of other cool mechanics.
I know you mentioned in other comments that you did have some other features planned already, but one thing I might suggest if you do decide to work a little more on it would be to add some sort of reward or feature when you really get swinging an enemy fast. It feels satisfying as hell once you get them going, so I'd love to see maybe the enemies get damaged from the high speed or maybe you can fling them for big damage.
I did feel that the level design could have been a little more spacious to accommodate for the full utilization of the swinging mechanic, but the overall design of the levels was still nice. All the beautiful particle effects, lighting, and sounds made the experience very satisfying. Great work, as always!