Very delicate photo...why is the feather in water? Granted, it is a very small detail, and the way the surface of the water bends just slightly at the feather's touch does add to the softness, so it is a good choice, I suppose. I like you color choice and composition. I wish that macro shots could allow a greater depth of field, as the shallow depth here leaves me wanting more.
7 - Very nice. Just a little sharper on the tips there and would be much better for me. Would like to see the 'down' in detail too, but I like it 'soft' too. That very slight insertion/indentation in the water is well captured too, though again, more detail/closer would be better.