Google image traffic without any conversion

I am having a blog, its for amazing photos and facts. I am getting good traffic from google images, But none of them converts.
So what to do ?

Usually people search for images and directly hotlinking them which is why you see high traffic coming from images however they are not converting very well in this case. You might want to consider engaging in SEO to rank your site for specific terms relating to your site such as “high quality wallpapers”, “beautiful images”, “amazing photos”, “interesting facts” or something like that.

When you say conversion, what is the action you are looking for as a goal?