Not just slightly bigger but also slightly better.
The pink looks quite different in this version (probably saved with more colors than upfront's?). It's better but still cheap compared to the limited one and even that one isn't that special

But wutever. The cover isn't really the most important for me of a single...
It's only sad if people who don't know them go into a shop, see the single and don't buy it because the covers looks cheap (and would have had more interest in it if the cover looked better).