This is quite nice Chilliman
The swan's back is a bit blown (lost detail).
Could do with a bit more saturation.
The lighting's a bit flat, which is making the water very uninteresting (colour + texture-wise). You could try a bit of levels/curves.
DoF + focusing are good.
Composition is good, maybe a bit tightly cropped at the RHS.
I think including more of the swan's reflection would have added interest to the shot.
Room for improvement, but still a good shot