Is there a way to produce a color/texture gradient in PSE18 or 19?

The above is part of an old, scanned image I am trying to restore. Notice that the color gets darker going from left to right and that there is a texture present. I am trying to duplicate that effect such that the grey imperfection and the white triangle are simply part of the sections below them in both color and texture.
The clone tool, though somewhat tedious, does OK except that the top of the groom's top hat prevents me from dealing with that section. I tried the gradient tool but the best I can do is a solid color gradient. Is there a way to create a 'gradient' of texture AND color from left to right?
