The requisites are:
Free to publish
Free for the readers
Publishing of mature non-explicit erotic or violent images
No copyright holding/No exclusivity
Accesible for the Cuban population
If at all possible, multiple languages in the same page
Here is my research so far:
Creating a wordpress blog: Got heavily spammed and forced to upgrade to premium.
Creating a free blog in a cuban platform: Hard to post images, random freezing of the page sometimes, not accesible with a VPN.
Creating a free blog in Blogger (Google's platform): Impossible to post multiple images at the same time (they get posted in reverse order every time). Tried uploading images with google photos, found the App insanely hard to use. Images from Googles servers are blocked in Cuba.
Tumblr: Got many errors when uploading images (due to censorship or otherwise errors in image size or format).
Instagram: really?
Tapas: Not accesible without a VPN.
Webtoon: No publishing mature content.
Remaining options:
Creating a manga magazine that gets published regulairly in PDF so i could in theory use Blogger to post the issues and compiled volumes of the running series, and Twitter/Facebook to market them. This is my favourite.
Youtube: It will not be hard to make my comics into soundless videos. Good choice, as i plan to open a YT channel for tutorials, short animated sequences and behind the scenes. I think YT allows some mature content as long as you dont cross the line?
Toughs?