I absolutely love your portrayal of Khare! You thought through about how her mutation works. Which amphibians she was basically fused with and how they each have their own role in her mutation that when brought together makes for a very cool yet terrifying way to live.
Also such a beautiful tragedy with her story. How she had a normal life before being snatched away to get experimented on by Prometheus. Her escape, how the heavy trauma doesn't stop there nor does the practical storytelling as she had to survive in the wilderness on her own for a time. Gaining injuries and of the sort until she ends up in Gotham city. A perfect place to lay low from people who work for Prometheus as there still could be a chance they're out looking for her.
How her mutation slowly spreads, hindering her memory and slowly eating away her mind. And that's ALONG with the eyes and teeth growing all over her body especially after getting juried. The uncertainty of if there is a cure, or a way to keep the mutation at bay. Or if Khare's fate is sealed and she is living on precious time. How one day, she'll loose herself. Every bit that makes her human, the friends she's made, her compassion, kindness, her determination. All her emotions and thoughts slowly decay as she watches her own body deform into something else.
Not to mention how relatable and sympathetic someone may feel when Khare is too scared to tell her family that she's alive because of how powerful Prometheus is. Like, a giant corporation, with MANY connections. Surely they figured out where her family lives and are waiting for the day Khare might return.
All of this to say that you have a perfect balance of tragedy along with a slice of life. The way you write Khare being drained from long shifts hits the nail on the head on how it actually feels like. It's so easy getting entranced with your writing! always worth waiting for as it's always so descriptive even when it's just a few sentences! Khare is just so human and I love it!
Her mutations are very cool but they actually come with a cost and you show it. Which I don't think is done enough in media. (especially with some superhero powers where theirs "comes with a cost" but it actually doesn't show or feel like it does. It's just generic and on top of that the superhero is out doing superhero shit. Contradictory with Khare. Who actually reads and FEELS like a normal person being stuck with powers that come with a cost but only wants a normal life. And actually lives a normal life! That's what makes Khare stand out. Because in the situations where she does fight it feels more genuine and so much less scripted.)