We have a lot of ideas of smaller stories that we want to tell with these characters, as well as a larger plot that will slowly unfold. So we are trying to balance an episodic storytelling method to develop the characters and the world, while also moving towards the big climax of the series. It's hard but it's really fun. As far as character design, I talk a bit about that in these two posts:

https://steemit.com/comics/@zoeserbin/character-design-mag-the-pilot-for-tugboat-comic

https://steemit.com/comic/@zoeserbin/character-design-adeline-the-captain-for-tugboat-comic

And I plan on doing a lot more of those in the future! Hope this was helpful!