Fire, Flesh's Fane (A Galdrilas Short Story)

Yshlii tread over skulls larger than horses. One that dwarfed a house loomed over her, and her hands trembled. Even a goddess shivered here.
Emerald lights pierced the black sky, the mountains a crown of shadows over the graveyard of her failed creations. They had been meager things—not the firebreathers or sky-weavers she intended. All she knew of the south’s scaled ones told her that the frozen north would be the best place for animals with suns for hearts, yet her spark had been too strong, her hate too potent.
She regarded her outstretched hand. Was it doubt that now choked her immortal breath, cooled her craving? Creating a being worthy of her anger proved harder with every sunset and moonrise. Perhaps her vengeance upon the spurning, sprawling humans had to wait until greater gods gave her leave. Perhaps the blaze within her was too much for mortal frames.
Yshlii snarled. Smoke billowed from her nostrils. Ice winds stilled her hand, but the heat within her leeched out the cold. Tendrils of flame sprouted from her fingers as they had with every creature she had wrought.
Her words came. “Hasten cinder to sunder bone, to witness wrath and worlds o’erthrown.”
The fire danced to her will and spread over the huge skeleton. It cracked under the heat, threatening to splinter entirely like all the others. The monster’s eyes became a furnace, and Yshlii closed hers.
New words burned. “Eternal flame be mortal’s bane. Infernal will be flesh’s fane.”
Bones crumbled, but in their place, Yshlii’s fury remained. She clenched her fist, and the inferno became teeth, muscle, flesh, wings. She let silence fall. A breathless moment passed.
The beast stirred, and the world shuddered.

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I initially wrote this story for a short story contest calling for stories under 300 words, and I basically wanted an origin story for the dragons of Zothral. Yshlii is the patron deity of vengeance in Galdrilas, whose attempts at revenging herself and her former people have manifested in many ways throughout the world's history, but the creation of dragons was one of her more successful attempts.
This was also my first attempts at incantation-based magic, and I think I'm still pleased with it two years after the fact. I drew heavy inspiration from Shakespeare's Macbeth, obviously.