First I washed the mantle with a mild soap and warm water then I hand dried it. I also let it air dry completely for a few minutes. The water became so dark and murky because of how heavily used the fireplace was. Here's the "after wash" photo.
I then applied the first coat of paint to one side and along one edge and left it to dry before flipping it over.
I finally waited until it dried and until my little monsterette fell asleep and put it back on the fireplace and added a few belongings here and there to make it look more warm and homey.
Note: I still have to paint the firebox with the black fire resistant paint that I mentioned before and add some candles before this makeover is completely complete.
I'd love to know what you think of it so far.
Night! Night!