I would 100% accept a featured deal with Webtoon, unless they put something reaaally shady in the contract. I make less than $15 a month for my comic, and as it is, I do about 12-13 panels in a painterly style every week. This is on top of working another job and not having an assistant. With $2k a month, I would DEFINITELY be able to make it work.
And I also know that you may get a bonus on Webtoon if your comic does particularly well. Already, it's at least $50 a panel. That's some good money right there!
When I say I have a painterly style, I mean this: