In the 2v2 pool, Therum is way too dark to see.
I've enjoyed 5v5 Pina Coladas but 4v4 is horrible. If the opposing team's player knows how to play when he doesn't have an opponent in his channel, and your team's player doesn't, the game's over at the start.
Edit: Phenom Spartiate is imbalanced with the mexes. There is one mex that is not placed symmetrically (might be more, but this one can be noticed right away).
Left, just above the line of water, vs right, just below the line of water. The one on the right side is placed closer to the water and can't be built because the hill is too steep.
Overall, Phenom Spartitate is not symmetrical in the textures, so it's very difficult to judge if the mexes are placed symmetrically, but I've got the impression they're bad.
(The mex icons are also not aligned to the build grid, but this is just visual)