First of all though I do agree that the Gods of the Night series is darker, I actually prefer the humour of Sparkle and Mede. I prefer the dripping sarcasm and bite of Holgarth. And the playful and sexy banter between each novels main couple.
I just finished reading My Wicked Vampire a couple days ago and loved the side stories between Asima and Cinn's creations lol... in this readers eyes, I would think that writing a darker story would be easier than one that has humour merely because we live in a predominantely darker society what with all the wars, and natural disaters etc. Kudos to you Ms. Bangs for bringing fun and laughter to your novels. One of many reasons I will continue to be a loyal fan!