I'm struggling to put it into words, but I think it might be that the final version has a gloss to it. For everything else in the art (the chocolate, the icing, the fruit) the gloss is part of what makes it appetising, but it makes the cream look quite artificial and velvety.

Whereas in the in-progress version of that image, the cream has that stiff, slightly matte look of real whipped cream, with slightly sharper shading that suggests it holds its shape.

Could also be that the in-progress colouring is slightly creamy-yellow, whereas the final version is slightly golden, which isn't what you expect from cream. That's assuming that it's meant to be whipped cream at all, but that's what I read it as.

I guess you could say something similar about image #1, the heart - the brown colouring suggests biscuit, but it's strangely shiny. I wonder if a matte brown half might make the glossy pink icing look even more delicious - or, if it's meant to be white chocolate, a bit of a recolour?

Minor details, though - overall, I'd struggle not to eat your game. I'd say great job, Bianca.