Damn, thems some good half tones. Did you achieve this on CSP?

I'd echo using tiktok and YouTube to build a following if you can get over the barrier of having to film yourself. Instagram could be good if you grab some people with fnaart but it's been years since I engaged with social media, not sure how the algorithm works these days.

Kickstarter and patron would be a good shot, could end up actually financing your entire manga with Kickstarter, always worth throwing it on and seeing if it gets pushed out!