Photoshop tip during the U game...you had better like it

Well, we're up 27-17 against BYU right now, but I saw this during half-time, and I really felt like I should post it. This Photoshop tip is about lighting: the difference between something that looks good, and something that looks so incredibly awful you want to throw up. Don't believe me? Look at a certain picture hanging in my Grandma's living room. Grrrr...
Anyway, here's the tip, and happy lighting!