Quick feedback:
- The design/layout/formatting looks great! But it's kind of busy and hard to read. I think you should expect people to print out one-page adventures, so the bulk of the body text should be black-on-white, and not diagonal.
- I like prose with scannable elements. The bold monster names (standard in 5e) are a great example. I like that you've made NPC names ALL CAPS, although it appears inconsistent, and I think there might be better treatments you could apply, like SMALL CAPS or underline or even bold italics color.
- "Key Locations" and "Other Places" seem like odd categorizations to me. I'd probably have a box for "The Village of Lanidor" and another for "The Tunnel of Love."
- "The Road Into Town" seems largely tangential. The "Village Square" entry is also kind of a non-entry.
- I think "1d4 Random Encounters" would be helpful. The traveling merchants might be one; the flowers in the village square might be another; the innkeeper who needs help could be one. This could reduce the amount of location-based information, giving the DM more flexibility in when/where those encounters occur.
- I really like the "Lvl 2" in the upper-right corner, and the title in the upper-left, because it's easy to scan if you have a pile of these printed out. If you're going to come out with a series of these, I think it would be good to have some consistency around how that information is presented.
- I seem to recall the adventure having concrete rules for what happens if a PC drinks the water! That seems really fun to me. I'd try to squeeze that in somewhere. (Although the doc is already pretty packed as it is...)
