full back tatoo with figth between warrior and dragon-like beast

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This customer received 13 tattoo designs from 7 designers. They chose this tattoo design from Madin as the winning design.
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Hi, my name is João. I am 38 years old and Brazilian. I am 1.91 meters high and 105 kilos in weight.
For many years I have dreamed of doing this tattoo. My idea is to represent in this painting a series of emotional battles that I lived and live throughout my life.
I fight for many years against an anxiety disorder and depression. I also have difficulties with alcohol consumption. Still, I was able to manage to be responsible for my life from a very young age. I have been working since I was 15 and have been living by myself completely since 18. I am very grateful for my professional career and I am able to provide for my family of three children. In addition to much love, I provide for them all the needs of education and leisure.
Over time I have gradually materialized in my mind these challenges as a mythological monster, like those Eastern and Medieval dragons or the Nordic sea monsters. And I see these daily struggles that all of us humans live as our battle against this monster.
I imagine this tattoo occupying the whole back. There would be a barbarian warrior in the center of the scene wrapped by this dragon monster. The warrior would be wielding the weapon and striking the monster's head, but still without contact (the struggle of life never ends).
The monster would be in a state of complete savagery.
I have a lot of doubt about which style I find most suitable. If something more oriental or falling to the barbarian or even Nordic style. I really wanted to count on the artist's vision at that point.
I currently have two small tattoos on my back that I would like covered with the new one. The detail is in an attached photo.
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