Can you explain a bit better how the character looks, where does the story happen... Small details like the book's name can also be very helpful

The male character is strong, tall and lean as only a warrior can be . Black hair, glacier blue eyes.
He has cold, hard features and carries a black sword made of obsidian.
He also has a dragon tattoo across his torso with a blue diamond for a eye.
The female character is fine featured with fire colored hair- deep reds, browns, gold. She has emerald eyes.
She controls the element of fire and has fire licking over her skin when angry.
They live in Boian. A city crafted out of stone and wood in the highest Alps.
It's cold and brutal yet they have managed to grow rare alpine flowers, one of which
Is a black and red rose which features prominently in the story.
Hope this helps and thank you for the question. First time doing this so wasn't sure
How much detail was needed.