melancholic doodles, melancholic doodle background with deep blue and gray swirls, evoking mystery and introspection

melancholic doodles doodle background deep blue gray swirls evoking mystery introspection sad art sorrowful sketches depressed drawings blueish gloomy reflection sombre illustrations teal navy perplexity pensive penumbra contemplation desolate inky sepia wistful brooding painting azure dim thoughtful monochrome moody cobalt hazy sadness sadfaced melancholy mournful shadowy doleful inkyblack ai generated