As per the suggestion of one marvelous reader, here is an art dump for all the characters! (Note that some of the designs might not correspond appropriately to the description in text. Always refer to the actual in-story description for an accurate portrayal of the characters. These are simply my best attempts at getting Midjourney to make what I want.)
Thorian Steelblade:
Nox:
Melina:
Little Roo:
Nalia:
Chibi Thorian:
A case of theft: this story is not rightfully on Amazon; if you spot it, report the violation.
Chibi Nox:
Chibi Brix:
Chibi Zogthar:
Chibi brown kobold:
Chibi Forelune:
Chibi Aqua:
Chibi Ventus:
Thimblewick Fizzlegrin:
Whisperwind:
Rumblestone: