For the comic I'm writing now, I had a very general idea what I wanted it to be about - magical girlfriends - and from there I jumped straight into drawing the first draft, which I then asked a bunch of people to read and critique. That's a very risky way to do it, since after getting the feedback and not feeling happy with it myself, I decided I needed to completely redo 95% of it
But for me I think it works, since I know I'm very good at fixing stories and characters. I make a complete mess with the first draft, but it's SO much easier to then work from a disaster instead of a blank page. I've also realised that I do need to do some scripting, just for the dialogue and a little more story structure, so I'm getting that done now and then I'll jump into the second draft! From there, I assume it's gonna play out about the same; get critique, revise, get critique, revise, until I think it's up to scratch and then I'll be drawing the final product.
This is my first serious attempt at a comic, so even I don't know how it's gonna go from here. It's a learning experience, babey!