Ah that's great! I was in Indiemanga myself, so I'd be quite interested to see your book! Actually Me, Anna and Sarah formerly of Indiemanga all have comics here on Tapas now! 
Itch was the small press group of Willie Hewes, and was most well known for the Leek & Sushi's Manga Show books, collecting people's Manga Jiman entries into anthologies.
In the spirit of both this conversation and the actual purpose of the thread, I'm going to recommend old friends from the UK comics scene who have comics on Tapas because I think picking favourites from people here would feel uncomfortable, and plus this way there's more chance of highlighting people that forum peeps might not know:
Emma Vieceli has a comic on Tapas, which is wild. To anyone who doesn't know who that is, Emma is the artist on a massive list of comics you may have seen in bookshops including Manga Shakespeare Hamlet and Much Ado About Nothing, the official Life Is Strange and Jem & The Holograms comics, the graphic novel adaptations of Alex Rider and Vampire Academy and even some work for Marvel. She's basically super-nice and has always encouraged small press people to make comics and given practical advice for self-publishing.
Rebecca Burgess is best known for comics about understanding Autism and Asexuality and is an actual cinnamon bun. Also fun fact, Rebecca and Sarah who makes The Princess Beast are twins IRL!
Morag Lewis is an unstoppable comics making machine. I don't think I've ever met a small press creator who can compare to her output. While her art is simple, her storytelling is always extremely solid. Always worth a look if you want a well-told fantasy story to binge.
