Hi! Read your first few bits of Chroma, I won't be using forum format quotes, I'll just be copypasting things and giving critique based on whatever I copy-paste.
"Curious, I slowly ascended from my lying position to a weak, unbalanced stand. My back felt damp, as if I was sleeping on dew-coated leaves on a cold autumn’s morning. Below me I could see ripples along the ground, as if I were standing in a shallow puddle that stretched as far as the darkness would let me see."
I think you're using the phrase "as if" too often in this case, it kind of breaks the flow. Unless you're going for a specific effect of literary parallelism, it would be better to employ metaphorical comparisons, or a different choice of phrases. For instance, I would write it as "Below I could see ripples along the ground, like it were a shallow puddle, stretching out as far as the boundary of darkness allowed."
"too faint to make out at my current position"
Grammatical issue here, it should be "From my current position", not "at".
"After roughly ten minutes of wandering,"
Unnecessary and breaks the immersion. In a world described as such, you should have no way of being able to tell the time, so you probably don't want to allude to any form of specific timekeeping. "After a bout of wandering" is how I would begin this segment.
"filling the area with a wickedly twisted and growing red aura."
My problem here is choice of words. "Aura" is usually not a concrete concept and is generally thought to be unable to be perceived. Perhaps "Tint" or "shade" or even "light" would be better here.
"though not by men, but of the beasts whose roars continued to ring around my head."
Again, Grammar. It should be "not by men, but by beasts". Also, a comma placed after "beasts" would make the sentence flow slightly better.
"I flinched back, slamming my eyes shut and ineffectively blocking my face with my arms."
Personal opinion, but I think "ineffectually" would be a better choice of words here than "ineffectively".