Oh, all of that is absolutely adorable. I do think the mermaids are cuter, but the yellow bedding is cute too. Maybe yellow sheets, if they would go with the mermaid bedding? I think I saw some yellow in there.

Yellow was my favorite color when I was little, too. My parents let me have lemon-yellow carpet when they put new carpeting in the bedrooms, and I was so thrilled.

Clearly further research is needed. :)