...but the result I got is unintended, I think. I just remembered that I can't post screenshots that I took for details, because my Surface Book is on the charger. Will post them in about hour, or so.
I thought I was doing the right thing, but ended up doing the wrong thing. Not so simple, but it wasn't as it has turned out. P.S. Back to bed for me, after having just woken up.
Tarnak, I assume you are doing an Entire Drive backup. In your first screenshot the external HD hasn't yet been connected. In your second screenshot the external HD has been connected. You should have chosen "D: (My Passport)" as the site to save the image. Virtual Drives are not used here. The fifth screenshot is fine (Options). The sixth screenshot (Summary) shows you have manually edited the Filename with the date. Don't do this as the Filename sorts itself out. So, delete the backups you just created and try again. Let us know if it runs smoothly.