This mission is really good! Intertheft is a reimagining of the infamous Thieves Guild... and it's a very well made piece of work. The corridors are cramped, but sensible and functional, the sewers are properly made (and by no means obnoxious as in the original version), everything has a purpose and makes sense. The atmosphere is better and thicker than in the OM. If there's one gripe I have with the mission, it's that it is extremely dark at times - maybe a bit too much for my taste.
Also, maybe I liked the original, more spacious Overlord's Fancy, but that's just a personal preference - dunno how it could fit in this FM's tighter aesthetic.
A little nitpick - by the time I reached Donall's mansion, it seemed like I was swimming in loot. Maybe it would be better to make it a little harder to get?

Overall, a very good mission, and a deserved winner of the contest. I'd love to see what Nomadman will make in the future! ;-)