URL for pictures website

I am new but I will try to do my best effort,

I am developing a website and I am trying to do my best job for a good optimization, so I have a little problem creating the URL

I wan to create the url like this:

https://ift.tt/2KjqdWA

so it's a problem when I am trying to get to this file the pictures in the root /images so: is it better if I use the link for the picture like: https://ift.tt/2JvChmp , it is good for SEO and for good developing practives? Also I am using "includes" elements

Thank you for your support.

Best regards