All 3 covers use places of historical significance, starting with the concert venue depicted in The Dreary House. A Place to Stay uses a certain out-of-state hotel. This one shows an old quarry. Like the covers before it, there has been some digital editing to portray a 'shifting' shadow. Abstractly, some may see it as the usual representation of a black hole. Such topics are pertinent to the story. Although many things on the cover are considered 'centered' by the computer, I felt the visual was more powerful without actually ordering it as such.
"Place" has been a central topic of these stories, from being in a place one should not be, to seeking shelter in a place during a storm, and (not to spoil too much) taking steps toward a place for oneself. On the one hand, 'place' may have been arguably overemphasized in an English class I once took, so there is some reference to a degree of tongue-in-cheek... here. [Main text for the class linked above.] On the other, sets and settings have a profound influence on ourselves.
Writing will inevitably involve place: A fictional setting, a non-fictional setting, a real-world setting wherein one must set aside the time and place to organize thoughts on a page - place becomes of the utmost importance. At least, until you find yourself in an English class entirely about place and the only words left to say about place become "get me out of this". At which point, we have, of course, arrived somewhere in an overlapping vicinity of 'character'.