make a Bg then make a new transparent use the lenth of the first sig as the height on the new one say 400X150 is 400X400 u can cut it down after u get down. take the bg from the first one to the transparent use perspective to angle the sig how u want add a render to where it pops out to make it work better make it look the the render is coming out or standing up if the bg is leaning. use distort if needed. when u have the angles u want and the render looks good add the text then rasterize the text layer use the perspective to find the right angle so it looks like its in the sig same as quote use drop shadow with half round 1 px black stroke its all about playing with the perspective and distort not much relly its all different each time you do it