I find many of your cropping/compositional choices quite unusual. Almost like somebody bumped you just before the shot.
21 shots - that's quite a lot. If you want a critique, choose a few of your fav's and post them. That will usually get you better feedback.
Hi Ben, I think you did a good job of capturing the carefree nature of a day out on the water.
I find your choice of crops in a few to be a bit unfortunate. Specifically, #1, #3 and #4 have heads chopped off, and I think those images would have been better if they were not cropped in such a way.
#8 doesn't do much for me.
There are some blown-out skies, but I suspect you did that deliberately. The images are a bit small to know for sure, but the focus looks spot-on. And I think the expressions and mood captured are excellent. Nice job!
I like to look at photos that make me say, "hey, this person thinks a little differently." These are very nicely done with a refreshing viewpoint. I'll look at 21 of those for every single boring photo I see any day. Thanks for posting and I'll be looking for more from you, Ben. I like them quite a bit.
And forget the polarizer for shots like these. That stark sky really does your models well.