So i've just added a picture for my signature but as you can see it doesn't show it and only shows that small IMG thing, i've uploaded it from dropbox which was recommended and have the right size
I had the same issue. I can't remember exactly what went wrong, but I believe I posted the link of the image by clicking the image button when you're adding your signature, but instead, you just paste the link. If it has IMG on both sides of the image, I believe you just simply paste the link into the box.