Extremely gorgeous, unusual furthering of the concept that Lemmings takes, and mostly well executed! The deep attention to sound design and music are phenomenal; more games need to learn from your presentation.

My problems are as follows, which will bump my rating to 5★s if fixed:

1. No adjustable key bindings (or at least, Z and X are awkwardly low compared to having to confirm with E; they could be better off as F and G or R and T, or alternatively, just confirm with the space bar)
2. Choosing one out of multiple paths for a herd is unclear; instead of barely brightening the white arrow to being whiter, it should briefly animate a yellow glow – or something like that – on the newly selected path, to make it more obvious (I accidentally chose the wrong path for them once and had to restart the entire level)
3. In early levels, it wasn't clear why field control was being taken away from the player until a cinematic showed itself; it would be good if black horizontal bars crept in from the top and bottom of the monitor to clearly portray that the game is temporarily entering a cinematic
   1. Cinematics should be able to be skipped, with, say, Left Ctrl or something (like when the water rises in the first night level with many islands)
4. When dialogue is occurring, the first few times when the green icon appears should be accompanied with "Click to continue," because otherwise its purpose came off as confusing
5. When herd animals climb up the bank of an island, their character models should tilt accordingly to show them climbing it diagonally, or else the midair rear legs and clipping-into-the-island's-polygons front feet look really weird
6. I don't remember the tutorial making it clear that sending rain onto hexes-with-brambles-that-you-had-burned regrows those brambles; I unwittingly did so which killed an elephant at the back of my herd who was still crossing through those hexes. The tutorial could do well to address this and/or the burnt hexes could still have their roots showing after being burned
7. As it shows when finishing a level, I suggest converting "Replay" to "Retry," "Redo," or something else; when I first saw the word, I thought I would be able to actually watch a movie-like literal replay of my actions from start to finish, to see what it looked like with no pausing
8. At the start, I did not actually understand that I was the Shepherd. This could be clarified if, at the start of every (or at least the first) level, we could see the Shepherd actually fly up/with increasingly close distance towards the camera of the player/monitor, and then see the game UI fade in, to show that you are in fact the hatched bird from the beginning of the story

But hell, I'm an extremely anal nitpicker when it comes to flawless game design, so don't mind me; the game is excellent already! Thanks for including it in the Racial Justice bundle.