@Eva Fifer here are the instructions for the beard ...
Duplicate the Background layer. Immediately convert that layer to a Smart Object.
Duplicate that layer again. Now you have the Background layer, plus two identical Smart Object layers above it.
Clip the top layer to the middle layer.
Apply Dust & Scratches filter to the top layer, with values 20/0. Then change that layer's blend mode to "Multiply". (At this stage, the whole photo will look weirdly dark and glowy and blurry.)
Return to the middle layer, and run High Pass filter at 0.8 radius. (Now the photo will look less glowy, but still awfully dark and blurry.)
Add a black mask to that layer. (Now the photo looks normal again.)
Use a low opacity white brush to paint onto the beard.
Let me know how it goes.