Axo, currently there is a problem with posting RYM images, similar to something that happened on the other MG a while back. I discovered a workaround. Let's say you want to post the album cover to Sting's Dream Of The Blue Turtles.
1) Here is the text we get from RYM. I added a space after the initial [ and the [ preceding "img" to preserve the actual text in this post
[ url=
http://rateyourmusic.com/release/album/sting/the-dream-of-the-blue-turtles/][ img]//e.snmc.io/lk/f/l/9456fa1b8a59a92e69c100e611812c87/1209657.jpg[/img][/url]
2) Here is what would appear if you pasted the above RYM text into a post:
//e.snmc.io/lk/f/l/9456fa1b8a59a92e69c100e611812c87/1209657.jpg
3) To correct the bug, insert "http:" after " [ img] " but before "//" in the original RYM text. I capitalized it, bolded it, and enlarged it to make it easier to see, but you don't have to do all that. Also, don't insert any spaces that I did to preserve the text for viewing.
[ url=
http://rateyourmusic.com/release/album/sting/the-dream-of-the-blue-turtles/][img ] HTTP: //e.snmc.io/lk/f/l/9456fa1b8a59a92e69c100e611812c87/1209657.jpg[/url]
When you post the above link with http: added (without my added spaces,) you get this ....

Hope that helps.