Looks good to me as well. It’s fashionable to move your saddle further forward and up for aerodynamics and hard smashing, but I would say that has many associated costs, especially to beginners or non-racers.
100% agree that the glutes and hamstrings should be used as much as possible, especially when climbing. I also like driving with the heel cup by dropping my heels and focusing on spinning a circle. If you cannot drop your heels and spin up fast at the same time, your saddle is probably too high, but I don’t see any evidence of that.