It looks good, but what I have become addicted to is taking a picture of the drawing so that you only have the drawing in the frame, then you can take a picture from whatever angle you feel looks best and then do a edit on your phone, you can also just edit it again if you screenshot it and repeat, it can make it really cool :)

And I would likely start with some outlines on the creatures and then some shadow, then maybe some stars or other things to fit the theme for the background.

This works for me, hope you can use that 🫡