Melanies make up looks perfect for the occasion - so if he can do that then maybe Katies 'overdone' look is not necessarily down to him? Maybe he just did as she asked.
I've never taken a great deal of notice of Katie until lately but I did see her many years ago in an episode of IACGMOOH she was encouraging Kerry Katona to do one of the eating trials - I thought at the time how naturally pretty she was and how good she was at giving the trials a go - she was not what I was expecting at all. Wonder where that Katie went? Sad really.