Which one do you prefer?

I have been toiling over how I wanted to draw out this project. First I thought I would paint it, but I couldn’t get a look that I liked. So I fell back on making it look more sketchy. I’m not 100% done with this page, but figured I would get some input before I proceed further.

My question to you is, which do you prefer? Only orange coloring, subtle color, or grey tones?

1) Only orange

2) Subtle Color

3) Grey tones