Now we have to change the girl's eyes' color. Paint her eyes with the necessary color on a new layer above the girl's layer.

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Blur out a little the layer: Filter – Blur – Gaussian Blur.

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Change the Blending Mode on Overlay:

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Combine this layer with the girl's one: Layer – Merge Down (ctrl+e) and make the corrections on that layer too (Selective Color).

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Merge down now all the layers: Layer – Merge Visible
 
(shift+ctrl+e) and make a copy of the new layer (ctrl+j). Apply the filter to this layer: Filter – Distort – Diffuse Glow.

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Change now the copy-layer's Blending Mode on Soft Light and minimize the Opacity till 70%.

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Insert after all the operations you made earlier, on a new layer, situated upper than the rest of them, the texture of an old wall.

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Decolorize it: Image – Adjustments – Desaturate (shift+ctrl+u and make the corrections on its brightness and contrast (ctrl+m).

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