On the topic of shipping, this art is cute
Tbh, I used to ship SaNa, but seeing Sanji interact with Pudding as a more or less normal human being kinda swayed me to their side. I know that in Oda's story nothing is going to happen anytime soon, so the age gap doesn't seem that horrible to me (I dated a 21-year old when I was 16, albeit briefly).
At the same time, it's OP, so if Sanji ends up running a mermaid cafe in All Blue with pretty waitresses and not tied to anyone in particular, I won't flip :)