๐ฌA .PAT file for photoshop, containing five different style patterns, so you can install it and use them through the photoshop pattern system. All patterns have no background.
๐ฌA set of five large .PSD canvases with the pattern already on, so you can just copy them and slap them onto your project, in either PS or CSP (4000x4000px, 300dpi)
๐ฌOpen PS, click the bucket tool.
๐ฌChoose 'pattern' instead of 'foreground'
๐ฌOn the upper right corner, click the โ icon, then 'load pattern'
๐ฌLoad the downloaded .PAT file.
๐ฌAlways set the pattern on a different layer from your background.
๐ฌTry out different layer styles in order to fit your final image better (personally I use vivid light, screen and overlay the most on PS, exp. color and light on CSP)
๐ฌAlter the color balance, use clipping masks and add gradients onto the pattern for better final results.