I like the purple on there. I see you tried to make a glow for the galick gun on the first frame..to make a luminous effect, add very bright colors to the middle and maybe a white to create the illusion of lighting... here's an app recommendation..Medibang paint.. it's awesome! Try it out when you feel like !😊

I see you're stepping up your game pertaining the animations too! That's really good! Keep at it!😊