The angle makes it look a bit lopsided, doesn’t it?
Also the lack of sponge cake. That's thrown off the balance of whipped cream to cake. He and Sanae should've chopped the berries inside smaller and rolled it more so there's a more even mix.
I've spread the cream icing, so now it's time to top it with strawberries, huh?Show me your decorating sense, would you, Kogasa?An ohmu?Hmm...kinda ordinary...It feels strong.