Any opinions are my own, any criticisms are meant constructively. I didn't bother to comment on good points of most modules, other people have done that, so the following may seem harsh.
Culinary Delights: Another version of the Travelling Building. This has been done to death. Maybe in a Planescape campaign, but even so, the building is at least a minor artifact, if not major, particularly being sentient. I've seen this way too many times.
Down By the Sea: Solidly done, but nothing I couldn't whip up in 5 minutes with the Mastertools Demo. Another grumpy dwarf who wants to be left alone... who is also a grumpy druid who wants to be left alone. Not very original, except for the combination.
Multhana Veloor at the Ship on the Mountain: Almost the only one where location and NPC can be used completely independantly... unfortunately they are too independant, with not enough given on each one. Trying to make two separate components leaves the whole feeling a little disjointed. Quite imaginative though.
Pond Scum: Yeah? And? Is there supposed to be an interesting location or NPC here? I don't see any. The encounter is fine, but the other two parts are lacking.
Dark Valkyrie: As others have said, not enough background. What does she actually want? However, the best use of atmosphere, and pretty good all round. One of the best, but why hasn't the Church done something about her? Any city with 8 watchtowers should be able to deal with her, given warning.
Kole Blak and the Seven Dirty Dwarves: I find that enough humour comes into my games without me trying this hard to add it in. Plus the spelling errors really put me off. It's basically a joke encounter, where the players get the joke but the characters don't... unless they don't find out the names. Then it's not funny for anyone.
Narvesh the Seer: Oh look, another crazy old man who is really the bearer of ungodly power. Sure this one is no Fizban, but still, this is also way overdone. Plus, his name is spelled at least 2 ways.
Bibliotheque: A really nice set piece, and a possible shock for someone trying to rob a library, but I think it's much better as a PC ally, and then it's not really much of an encounter. Plus, Rogue levels? Why not Expert or Wizard?
A Hunter in the Darkness: Basically, the PCs stumble on a conflict between two evil types, but one is more evil than the other. Real possibility for moral conflict, and the Wizard can easily be scaled up or down. This is the only one I'm likely to use in my game, and its the one I voted for. Sure, the location doesn't exist outside the NPCs, but it's a great encounter.