Posette is 5'8" Vicki is 5'10" or 11" The problem is that Vicki is taller not bigger, you can't just scale the clothes up. Not only that, Vicki has a difference shape than Posette. If you really want to do it, you'll have to use scaling, magnets, and the the grouping tool to resplit the clothing item. Here's what the thin strap dress looks like on Vicki.