Make it darker and contrasting, using Image - Adjustments – Curves (ctrl+m)

Fairy Night photo editing in adobe photoshop cs

Cut it out along the eye's line with Polygonal Lasso Tool.

Fairy Night photo editing in adobe photoshop cs

Change the layer's type on Multiply. Take a ready brush now, imitating the marble veins and cover the entire picture with it. Cut the eye's orifice.

Fairy Night photo editing in adobe photoshop cs

Change the layer's type on Soft Light. Take the next instrument: Brush Tool and picture with it many points of different sizes.

Fairy Night photo editing in adobe photoshop cs
 


Apply to this layer Filter – Blur – Blur. Copy it several times and blur out each of them, setting different radius with Filter – Blur – Gaussian Blur.

Fairy Night photo editing in adobe photoshop cs

Then apply to each of the new layers one more filter: Filter – Blur – Motion Blur. Merge all the layers that we've got, making use of the next command: Layer – Merge Down (ctrl+e).

Fairy Night photo editing in adobe photoshop cs

Add the same way in some places several stars' accumulations.

Fairy Night photo editing in adobe photoshop cs