Welcome to releases. I like the themes you're going for here.
Tidal Town is fairly bland but comfy, without any huge issues. One thing I'd recommend is using a different texture for the dirt offroad, a darker one, or maybe the grass you've used elsewhere. It kinda blends in with the main road texture. Otherwise, a nice simple track.
Glacial Halls feels a lot more rough, with some hard to read / blind turns, and places to get stuck in that will lose you a lot of time. This one could use some changes, but all in all, these maps are pretty decent for a first foray into kart mapping. Keep up the good work and keep learning, I look forward to seeing your progress as a mapper.
