By 1842, Victoria would have been, 23, and trying to appear very grown up. The skirts are widening (as are the hips and bust line after bearing two children), and do so even more in 1847 when she would have already had five children.
this reminds me of the type of gown that the tailor would have made for Katherine to wear to her sister's wedding. Katherine adores this gown, but Petruchio claims that he hates the gown and denies her of wearing it, proving that he has complete control and power over her. This lesson encourages her that in order to satisfy herself, she must satisfy him as well.