I feel that I could take a serious, but humorous approach to the situation. (tasteful humor of course)
I'm really motivated to write high quality articles for your bathroom blog most definitely. I do not have the best background in interior design experience, but I feel like I could be a great candidate for what you are looking for. My mother watches home decorating shows, she bosses my step-father and I around to organize and re-paint, plumb & electrical work at no cost to her. writing about sample pictures of bathrooms in detail, would be exceptionally less challenging then the previous mentioned.
Being serious though, I want to write some articles for your blog given this opportunity would be a great way to get started here at freelancer. thanks for reading