Before I move with any new characters, I wanted to show what Harmony’s adult design was. Note, this is her younger adult design, so like 18-20. She’s grows a bit taller after that, but I’ll show it another day.
 
There’s not a whole lot different here, mostly longer hair ( which she still wears up in a Pony tail to keep it out of her face) and a longer body. She’s about 2/3 the size of Dsicord, but still tall enough to intimidate ponies with her stature.
 
Also, there’s something I have yet to mention. Harmonic Chord here is half draconequus, half pony ( even though I usually reference her as a draconequus) , but her halves are balanced. By balanced, I mean the pony genes and draconequus genes are in perfect harmony with one another, balancing each other out perfectly.
 
As a result, her body shape in split into two parts: a draconequus body, and the neck/ head of a pony. ( yes her neck is slightly longer than a ponies but nothing like Discords) This is what I like to call a Balanced-Hybrid, where the distinctions show, but mix well.
 
Also, Harmony does have a cutie mark, I just am too lazy to draw it. : /. I’ll show it someday.