Mobile games design: very simple or artistic?

Hi all,
A lot of posting from my side this day :smiley:
I’m making a mobile game that is a mechanical puzzle game and the camera basically stays where it is. I have just finished the design and the render of the mechanical parts and it looks really artistic and antique (if I’m to say so myself) but I do not know if this is the way to go or something very simple, made out of one or two colours?
I admit this looks great as a wallpaper but maybe it is too much and really mobile gamers not that demanding towards graphics.
Thanks in advance.