Quick thoughts, I think it would be great if you had a DeviantArt page or maybe some other "art" website then just Twitter and Bluesky. Even Pixiv could work too as for more publicity.
Second, although this is a "modification/transformation" visual novel, do you plan on having some branches just have a "slice of life" section? An example is my favorite scene came down to growth 4 where Mia and the MC have a moment together (I mean I also really just like the tall girl/mini giantess part).
I'll be honest, I'm very incompetent when it comes with social media, so thank you for your suggestions!
From my (limited) understanding, DevianArt and Pixiv are more for artists to post full artworks, no?
I could just post stuff from the game there, but I thought they would be a bit out of place.
Do you have any examples of game devs that use those platforms, so that I could have a look?
Regarding slice of life sections, I enjoy more "lovey-dovey" sexy scenes, so that will happen sometimes.
Additionally, (much) later on, there will be a evolution of Mia's and MC's relationship - which will probably focus on more slice of life/grounded scenes.