Thank you! I'll keep an eye out for that from now on! Thanks for the feedback!

Extremely decent, can be more if you do not make more banding.

Those lines where you draw a line and another next with the same length is called banding, may break your pixel art clusters, sometimes it's inevitable, but is always good avoid. Take this second light from the moon and draw the edges with lines a little away from the center and you can make a soft effect on the moon, make it more rounded.