[gdprrrr]

Usw autoref instead of ref and it will add the "Figure ", " Chapter " etc automatically. And for Differentials, dwfine a semantic macro like \dd from the physics package. I find quotes are besr left to csquotes, which lets you define the type of quotes and show they nest in the preamble.

[fanpu]

Wish I knew about autoref earlier, it also increases the area spanned by the hyperlink generated to the entirety of "Figure 1" instead of just "1" in the case of ref.