Super cute! I love the bright colors of the characters, really makes them stand out! I think that you could have tones the far background down a bit to give it bit more of a sense of depth and to make the foreground characters pop out a bit more. You could do this by passing a very pale neutral grey across the background. I also love how you have some areas inked with lines but took a leap and used the colors themselves to give shape to areas like the trees and the clouds, it looks great and helps the characters stand out well. For the inks, (love how simple they are) try to make them thicker in areas that are shaded or darker, to help with a bit of depth. Well done on the asymmetrical edges and the messiness of them, next time in a similar piece like this you could try to make them even messier I think it would make it look more unique and that you might have fun doing things more loosely.