Just another thought, but again this is the third book in the series so it may be a while before I can determine which cover fits best.
On another note, I've been considering whether A Greater Destiny should be the third book. It's difficult to explain without giving away any spoilers, but for now it is fine where it is in the series.
"There's a lot that I want." He said. He smirked as he said it like he knew he was pushing my patience.