How can I add a personalisation sector to the Prestige Theme?

[AmarisBeauty]

Hi there! Would like to check if anyone knows how to include a personalisation sector onto the Prestige Theme?

Link: https://amarisbeauty.com/collections/maison-margiela/products/replica-by-the-fireplace

I would like to include the below option to personalise the fragrance bottle:

Thanks in advance!

[Appify_Commerce]

Apologizes, I am not having any clue on this right now.