Some pretty sweet first maps to post on the site!
Couple thoughts on each:
Snowball Fight
Two main things that I'd work at here, one tiny and one a little more involved. First, I'd leave the glyphs random. Thorian is just gonna skew things, so I wouldn't specify it. Second, I think the level 3 is a bit flat and uninteresting. This map would benefit from a little bit of level 4, imo. I love the side level 3 runs, btw.
Louisiana Hot Swamp
The biggest thing that sticks out is the level 1 swamp 2-hex on the left side of the SZ. It just slows down development a little more than I'd like (you have to go down up down up). I'd move that 2-hex up and left, and then free the swamp 1-hexes that are unnecessarily propping up a 7-hex and place them somewhere more helpful. Also the SZ is 25 hexes.