The first point about titles is you aren't illustrating them, but the story. I wrestled with it -- and won quite a few times.
Notice that "The Dragon's Cottage" cover has neither a dragon nor a cottage.
And "The Maze, the Manor, and the Unicorn" has neither a maze, nor a manor, nor a unicorn. (Of course, its working title was "Lady In Waiting" before I decided that the pun might work in an anthology or magazine, but not as a stand-alone title.)
And "Eyes of the Sorceress" depicts neither eyes nor a sorceress.
However, that being said -- if you don't have your title, you don't have your cover. You can not -- absolutely can not -- cast your cover in concrete and say that's it -- I will just slap whatever title I decide on on that. Because the title is also a graphic element. You need it large enough to be read, which means you need a stretch of neutral space large enough to hold it in a font large enough to be readable -- hopefully even in a thumb-nail, certainly in the medium sized image that you get when you see a book cover online. "The Maze, the Manor, and the Unicorn" would have been an interesting fit on either of the other two images.