Some complaints
I like the scene you tried to create but you have serious problems with the accuracy of the drawings and the color range is poorly balanced.
For example if you see the tree that is on the left you can notice a large irregularity in shape and color is not exactly the best. It would have been better if you had a combination of black and green which would give a sense of depth in the image.
So I recommend that before you paint any picture you draw it on paper first, to choose where to stay every shadow, every element, and each color experience and see that this is before you do the final work.
But you have talent alone you need to work on precision, practice much and experiment more with the scenes until you find your own way to combine things.
I wish you luck and continuous improvement.