You'd probably get better responses to your story posts in the writing forum :)
Also, I think for the royalty characters, you should stick with full names. Seems more fitting for their formal situation because nns are informal. And since you're also creating names for the series, it'd be best to stick with the full names so your readers learn to associate the name with the character and to prevent any possible confusion. That's my opinion on it at least.
My PNL = http://www.behindthename.com/pnl/37275
Top: Henry & Lara (main) and Caspian & Briar (GP)
Bottom: Dinadan & Jacoba (main) and Othniel & Melpomene (GP)