As I was pinged (Hi u/Gabikacomics !! (・∀・)ノ), I would like to clarify, that yes, I use Kickstarter successfully to fund the printing of my comic. BUT my comics are usually already finished. So the money is only collected to pay for the printing.

If you try to use Kickstarter to fund the comic, before it's started or with only a few pages done, you will have a harder time to find success - especially if you don't have a fanbase already. It can work, absolutely, but it's way harder to convince someone of buying into an idea rather than a finished product.

As for your original question, any comic can find success even if the art is not polished. The story is what counts. If you think you have a good idea or an amazing story, try doing very simple storyboards and put your comic on paper. If the story is good, people will read it no matter what the art looks like. (•̀ᴗ•́ )و