My product has rejected , any one help me to find out reason

My product has rejected , any one help me to find out reason

Waht’s this?

3D Render Pie chart

i think this is good , it looks belle executed as far as i can see but the thing is that this is hard to identify what this is and what this is for … i am not sure that it would not be better for you to create a set of shapes like this and make sort of a bundle … maybe they considered that a single shape like this, isolated , would have too much of a limited commercial potential indeed

Thanks for your Response. As your comment, i got one reason commercial utily, do you suggest, any other reason?, if i create bundle of shape, will it approve.?