Mark out the chair now, clicking on its layer, having pressed in the same time the ctrl button. Select the Polygonal Lasso Tool to erase the markings from the chair's legs to have the impression that a part of the legs is situated in the water. Erase the marked zone with the delete button on the keyboard:



Move off the marking: Select - Deselect (ctrl+d) and change the water's color with the next selections: Image - Adjustments - Hue/Saturation (ctrl+u) and Image - Adjustments - Selective Color.



Change the layer's type on Screen firstly, then on the Normal again. Using the Gradient Tool and the layer's mask, hide a big part of the water:



We should have Blending Mode Normal:



Continue by processing the girl's layer. Make use of the Clone Stamp Tool to make the girl's hair look livelier:



Then we have to correct the layer's colors (Selective Color).