advertising poster style , score_9, score_8_up, score_7_up, score_6_up, 8k, masterpiece, 
bass guitar,
the guitar is made of solid material with the optical properties of running water
small parts shining with a silver metallic sheen 
detailed headstock
A spotlight is aimed at the guitar, the light is reflected from the guitar, refracted and divided into spectral colors.
caustics
The background is a sheet of music on brown papaer
<lora:WowifierXL-V2:0.8>  <lora:SDXLFaeTastic2400:0.8>high-resolution, Professional, modern, product-focused, commercial, eye-catching, highly detailed