hello and welcome to my 2nd tutorial i hope you like it :)
1- create a new document 530 * 310 px fill it with #D6D2CB (background)
2- create a new layer fill it with black , apply clouds (colors black and white) , apply unsharp mask with medium params , change blending to screen apply fresco with brush size 0 brush details 8 texture 2 set opacity to 20%
3- create a layer between to two layers apply clods with white and #C8C7C3 add noise with a small amount blending shange multiply
4- merge visible
5- apply lighting affect