All of your new maps look really good. I am never a fan of using Castle wall without the cap, so I will leave Molten Stronghold aside
.
In terms of balanced and playable, I like Flash Fire the most. It looks similar to Ch1can0's
Little Rampage and UPC's
Highway or Dieway, but in a smaller footprint, which is excellent for tournament.
Melee units will have difficult time on Damp Ruins, I think. But the map looks great. So does On Frozen Pond.... I would replace several water tiles surrounding the central glyph by ice tiles (or snow tiles) to create a passage to cross the river more easily. I know you want the glyph to be hard to claim and hard to defense, but unless it is an important glyph, I think the area will see less play. Just my 2 cents
.
Overall, I really like the look of your new patch. I think people in the tournament will have a lot of fun playing on these map. Good jobs,
Dignan!