"Create a visually striking graffiti-style artwork depicting a nature scene in a wall corner setting.Incorporate bold outlines of flowers featuring vivid colors such as orange, teal, and neon pink for the petals.Include swirling vines in the same color palette that wind around the flowers.The background should portray a dark and dramatic city alley, contributing to the overall atmosphere.Ensure the design has a dynamic composition, and explicitly avoid any logos or branding elements in the artwork."