I've uploaded a free size guide on Patreon for Webtoon & Tapas. 💚💛 It includes the general recommendations and JPG image templates of each thumbnail/cover in the recommended resolution. I hope this help!
If you have any suggestions on what I can share next, please let me know!
I'm planning on doing an Artist Q&A soon! If you'd like to know more about my webcomics, art process or anything in between, please leave your questions below. I'll be answering a bunch of them in an upcoming post. Thank you!!