fantasy treetop fortress, wooden castle and walls, fantasy, fey, medieval, large thick oak trees, thick twisting roots, bathed in sunlight, small guard in turquoise medieval armour perched on thick tree branch, Magic the Gathering artwork style, oil painting, Studio Ghibli artwork style, Eiichiro Oda artwork style, anime artwork style, dark background, anime, character design, cinematic, HD, 8K, --niji 6