I see your still on your 'Journey' for that perfect abstract.
I like the colours in the water in this, but I think the rock detracts from the image.
This is down to the colours in the rock, which can be adjusted with a bit of selective saturation/de-saturation. This will bring out some of the red in the rock to go with the colour in the water. I would also up the blue saturation on the water.
The composition doesn't work for me, I would like to see a little more space to the right of the rock, this would give the water and viewers eye somewhere to go, at the moment it just stops at the rock.
I expect you do have a shot with more space around the rock?