Select the same Gradient Tool on a new layer and change a little its adjustments to insert our picture in a frame:



Change the layer's type on Overlay:



Create now a new layer and use on it this combination: Image ? Apply Image, choosing in the Channel option the most in contrast version:





Using the Selective Color in the Black and White options, we should change the colors firstly, and then change the layer's type on Soft Light:



Continue by inserting the last texture. On the top layer we should place the picture of the sky:



Change the layer's type on Hard Light and make the necessary in the colors too, applying Image ? Adjustments ? Channel Mixer.



Choose the Layer Mask and the Gradient Tool to give back the visibility to the eye:



Blur a little the layer containing the sky just to get rid of the layer's noises: