Good morning!
I hope you are having a good day so far, and I hope that these Before and After pinups of Brianna from the Oktoberfest 2024 comic makes it even better. :)
There are some clear issues with the Drindl dress once the ladies grow to this size, and there really isn't anyway to fix it. The apron and other parts are not separate pieces. It's all one piece. So there is no way to tell one layer to push outward or conform over another layer. You can't even fix it with a push/pull tool like Mesh Grabber. This might be the sort of thing that could be fixed in an external program such as Blender, but I am not sure about that.