Should I create original images for my blog articles or use stock images?
It is always recommended to use original images over stock images. You can perform image optimization and use alt tags. Google can’t see images but can read alt tags and it would work great if you have original images. If you have the knowledge and skill to do it, then creating your own thumbnail for your blog, as well as the images within the blog, is the finest idea. No matter if you are using a free blog or a paid one, this is a great way to get additional traffic to your site (use the right Alt Text). Moreover, this ensures that you have the most relevant images based on your blog. Stock images do not always fit the context, especially if you are writing something unique.
Advantage of using original images
When you perform reverse image search with your original images, you will find number of your blog/website links and few similar business/niche domains. Reverse image search is pretty much common in few countries and people like to dig as much as information if they really like your product/information. It would help you to attract new visitors and drive more engagement on your website/blog. Original content is always better than using copied content.
Disadvantage of using stock images
When you perform reverse image search you can actually see the number of business/website/blogs have used the same image. It doesn’t create good impression on user. Stock images are quickly well-known but also well-ignored. User would not be interested in images which they have already seen somewhere else. It doesn’t attract new users on your website/blog.
Tip: Use images with little informative text or try to use info-graphics on your post to share little bit information of your product/information.