Why my images quality issue

You could also sharpen the image a bit.

Hi ​@Nzr Maz ,

The image is slightly underexposed and has a white balance issue. It has a blue tint.

Best wishes

Jacquelin

Hello,

I would choose a different background. The blue background gives an overall blue cast.

Too much blue. 

Also, I would ditch the blue background color. 

Customers want Stock graphics they can use on any background.

Hope that helps.

It seems a bit underexposed.

Maybe this: