Select a ready to use brush now to introduce the moon in our picture (the brush may be downloaded on this address: http://www.deviantart.com/deviation/9890582/? qo=65&q=by%3Alarafairie-stock&qh=sort%3Atime+-in%3Ascraps).



Make the color's correction of the basic layer (Selective Color).



Insert now the texture of an old paper, placed above all the layers:



Change the layer's Blending Mode on Linear Burn and change also the texture's color, selecting Image ? Adjustments ? Hue/Saturation (ctrl+u).