Neon light bulb doodle pattern background png https://www.rawpixel.com/image/2717402/free-illustration-png-wave-back-school-background-designView licenseCute black business png cartoon icons set https://www.rawpixel.com/image/2789626/free-illustration-png-doodle-black-and-white-black-design-element-human-standing-stickerView licenseOffice workers png cartoon hand drawn cute icons set https://www.rawpixel.com/image/2789591/free-illustration-png-walking-art-artistView licenseCute black business png cartoon icons set https://www.rawpixel.com/image/2789499/free-illustration-png-hand-waving-black-and-white-design-element-bulbView license