Double dilemma! Realism or fun? More details or simpler graphics?

As the title says. Double dilemma. What should I do? Make a game which is closer to realistic in term of physics or make it simpler but easier to play. Also what about the graphics? I tried out different approaches for making it nice and cartoonish, but which method is the best? Let's find it out!

Working on the background...

I don't usually share only one picture, but when I do, it shows some improvement in graphics.

Hand-drawn background just made overall look better.

Facebook - Racing game photo album

I made some little progress on the racing game project for Android. Here is the current screenshot album on Facebook. For more, please like my Facebook page!

Post by Adam Pajor's Workshop.

(Game Dev / Modeling) Cartoon Knight (WIP)

Cartoon knight (WIP, made in 3ds max 2009, image taken from Unity 3D engine)