A Idea...

Don´t know...

Should I go on with this?

...you mean with the art style?

art style...Idea...

well, it depends:

If the game has a story to tell and its fun and interesting, graphics aren't that big of a deal
Just have fun and do something you can achieve on your own

I like this kind of art style. I also believe that you should go on if you have fun doing so. We just had a discussion about illusion and marrative aspects in games. Graphics are just part of it. When i was a kid i moved a white bar up and down on a screen and was convinced it was a tennis simulation.