Looks great. Can't wait to see it finished...and the ones to come.
Also, what a great place to adventure! Please tell us more about your setting when you get a chance. I'm assuming the route is no longer the domain of dwarves and is inhabited by some really nasty Underdark denizens? Got to have some Mind Flayers. Back when Wizards was still selling old 2E stuff in PDF form I picked up the creature books on illithids, beholders, and sahaugin along with the adventures that went with them. Fun stuff.