Doesn't look like a mushroom :p

a Giant Mushroom by "Cyril Rolando", "Erin Hanson", "Jordan Grimmer", "Severine Pineaux", "Karol Bak", "Alena Aenami", "Anato Finnstark", "Huang Guangjian", "Dan Mumford", Epic, hyperdetailed, surreal, LSD art. textured mushroom

vibrant colors, vivid colors

intricately detailed giant purple mushroom by "Joe Fenton"

cut off, cut out, cropped, split, frame, tiling, out_of_frame

very dark

faded, washed-out, watery, bleached, greyed-out; grayed-out, haze; hazy, fog; foggy, blur; blurred; blurry, grainy, pixelated, noise; noisy, mist; misty, smog, steam, grey, dim, dull, smoke; smokey, dust

ugly, dirty, nasty, sloppy, messy, faulty, filthy, poorly_drawn, untidy, unclear, paint_flecks, cut_off, bad_anatomy, deformed, disfigured, out_of_frame, tiling, asymmetrical, incongruent, imperfect, bad_proportions, disordered, distorted, disruptive, undeveloped, underdeveloped, underexposed

ugly, tiling, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, extra limbs, disfigured, deformed, body out of frame, blurry, bad anatomy, blurred, watermark, grainy, signature, cut off, draft