Hey there! Really nice stuff I'm new to photography ,im really interested in light painting and cool stuff like that, may i know what settings did you use?
honestly, i just started doing photography like 2 weeks ago believe it or not. so i don't know all the settings. but all i did for the light painting was set my camera to [s] for shutter speed control, and it will auto adjust the aperture for you. then i set the shutter speed to [8"] aka 8 seconds. that's it
oh, we started around the same time then I'm mostly on manual mode, although im not 100% sure what every single option does. It gives more flexibility on changing the light it receives.