#1 would have done better if the head and eye area were opened up a wee bit just a kiss so that you can get an idea.
2 &3 appear to me as folded together - difficult to separate the ducks from the water.
#4, I like to sense of action. Perfect.
Just my humble, Daniel.
I truly like them all. These are just what my first impressions. And what I see on my monitor.
Marie