The render quality seems good to me, but the market is indeed saturated with these kind of images. I've seen the faceless generic guy in many images, in different colors, sizes and poses.

The render quality seems good to me, but the market is indeed saturated with these kind of images. I've seen the faceless generic guy in many images, in different colours, sizes and poses.

thanks for the feedback ,

different colours with detailed works are very less according to my research , i don't know on which products / media customers usually rely on this type of illustrations & with my assumption the generic face type of character customers can use on any theme / situations which is usually a good benefit of that type of character . 

in my country i see this type of characters in flex and boards but usually they are usually a bit dull because of its composition and colour . which is my personal opinion .

Looks like you've got yourself some unprintable RGB colors. I usually try to avoid those.

Try different things and see what sells. That's what we all do.

sure and thanks for the suggestion .

I think you should add more realism and less like vector drawing. That would include more detailed textures, better shaders, more interesting lighting and pay attention to color theory.
For instance, why not give that box a more realistic shader and texture and rotate it so it can clearly be seen as 3D, to make it a step further away from vector drawing.

thanks for the suggestion , yep it looks like a vector drawing , definitely i will consider it .   in coming days i would like to make mixed media illustration by adding some doodles or line art to the whole composition to cater the whole illustration more meaning full