I just added the artwork, to show you all what happen, if the (game) screen-resolution is small. In bartop environments you usually deal with 1024x768 and that tend to look like my picture, if vertical oriented games are launched, even without artwork.
Also you can use cropped artwork presentation, which give exactly the results you desire. TBH the handling of artworks, is for the ass. Not intuitive at all, even the devs cant explain it well enough, how it works. Artworks are nice, but handling is rubbish, must have been good weed at that time to understand that logic behind it.