Sparkle Girlz are shorter than Barbie, but their body proportions are much more close to them than they are to MH (especially in the shoulder-area), so I assume the clothes would look too baggy on MH without alteration. I don't have much experience though, as I only own one actual Sparkle Girlz dress, but that it is often worn by one of my Kurhn dolls, whose proportions are the closest to Barbie.