The concept is an interesting one, and one Akanei-Rin has stunningly brought to life
For starters, observation of the human form - top marks.
The subtle range of colours blended together to form the skin and cast shadows is beautifully done; it looks almost pearlescent, like the reflective, silvery inside of an oyster shell.
The expression on the face is well executed. Subtle, but not understated, and you can really feel the shock and pain of the character in the very moment they realise that all their expectations and beliefs have been shattered. Expressions are always one of the trickier parts to get right - especially in realism - and you've done a really good job on this.
I adore the colourful, air floatiness of the 'hair', although I'm curious as to what it's meant to represent/why it's like that. But I guess that's up to the viewers' interpretation, eh? Either way, it provides a strong contrast to the violent shock of the bloody arrow in the person's head and the blip by the eye, making it really feel like a moment stopped in time. Actually, the hair reminds me of a jellyfish, just gently puffing and wafting in the pull of the water.
All in all, a superb piece.
Thanks for taking the time to write such lovely praises. It's always a pleasure and honor to read the response of someone who has taken the time to look and reflect.
If there is anything that can be improved, either technically or conceptually to increase the effectiveness of the painting's message, please let me know.