Underwood and Flinch is a vampire story.
From a cover design point of view, I think these things are worth noting:
The central characters are:
Lord Underwood, a male vampire in his late thirties. He has short dark hair, combed back, and is approx 6ft tall. He wears a black suit and tie. He is handsome, charismatic, charming; but a dark figure.
David Flinch, a man in his early thirties. Sandy hair, slim build. His look is more contemporary. His demeanour, when contrasted to Underwood, is fearful, yet determined.
There is a third main character, Lydia Flinch, she is a seductive, sinister figure. Late thirties, dark hair (past her shoulders but not much further), beautiful, sexy, think typical evil femme fatale.
The book is set in Andalusia, Spain. So if you look up "Spain, Olvera” (the town it’s set in) you should get an idea of the local landscape. Olive groves feature also.
Iconic objects in the story: Besides the location itself, which is significant, the vampire carries an antique pocket watch. There are guns, too, notably a Thompson submachine gun.
Underwood has the ability to turn into a bat and a wolf, which he does on a few occasions.
There's also a sequel to this book which I'll be wanting a cover for, too. Preferably in the same design style by the same designer.