I'm an artist too. Remember you asked for honesty. So here goes..
The color choices are good. The colors are not blended very well..There should not be color edges. The colors are actually too bright and unrealistic. The trees aren't realistic. There doesn't seem to be any ground for the trees..The painting needs more subject material.
I'm not saying this to put you down, but to help, so I hope I have not offended or upset you