Nice picture, inviting to relaxation! But I notice several dust spots in your sky, near the horizon.
This is not a negative comment, but rather an occasion for me to give you this tip, in case you don't know it: why don't you get rid of them using the healing brush tool in Photoshop (the Band-Aid tool) or in the GIMP?
This is sooooo easy to do: use the tool circle cursor, make the brush size large enough to have the dust spot fit in the center of the circle and just click... The dust spot instantaneously disappear!