Hey there! There are LGBT themes in mine (Between Hay and Grass), though I haven't been explicit about it just yet because I want the knowledge to develop naturally and I'd like the characters to reveal subtly about their LGBT status (but it's not really a spoiler, this is mostly for people who read the comic but don't really interact with me)
While the main child character, Persephone, is a bit young, I envision her as a lesbian (You know, child crushes, but on other girls)
Her grandfather, Larry, is canonically a trans man, and is bisexual.
There are also (so far) unrevealed lesbian, gay, agender/nonbinary, and transfeminine characters; and most of the other ones I haven't decided are up for interpretation (I can't say too much, because, spoilers! ;u;)