Answer 1

You have to link the image not page containing it. It has to be smt like this: www.freecloudstorage.com/storage/yourimage.jpg (just example) not www.freecloudstorage.com/storage/yourimage.html (note the extension).

Answer 2

Here for your study

https://code.sololearn.com/WW2zzRFwpH9v/?ref=app

Answer 3

That is a webpage link, not a image link, image normally ends with image file extensions, eg. jpg, gif, png.

Try this
https://art.pixilart.com/8435d813bf2d04c.png