Prompt: In vivo immune system attacking covid virus, group of many microscopic white-blood cells attacking many viruses, many small red-blood cells shaped like biconcave disks in background, closeup, trending on art station, intricate detail, greg rutkowski 
Negative prompt: humanoids, clothes, bipeds, humans, people, men, women, 
anthropomorphic, blurry, abstract, cartoon, 3d, lowres, low resolution, offset, off-center, cutoff