Foreground: Great colors maneuver. Her yellowish coat and slightly red/pink mane and tail are ideally suited to the night scene,great job. Her fur,tail and mane are well finished, details are shown,you can see single hairs. Her pose is similiar to a human posture. It looks great in this particular drawing and goes hand in hand with your style. Also, her eyes are magical, deep blue color with beautiful light reflections,but why she have red eyes (red sclera),allergy? Her calm expression on her face with a slight smile are indescribable. And what about the light source? I see two of them,one of the right side and one on the other side. Right side lighting: It's the main source of the light,probably moon - Illuminates the entire composition, creates an atmosphere... Left Side lighting: I'm not sure about that one, is it the reflection of water? The mysterious source of light? Bright sky? It's hard to say. But even if I am unable to determine the source of light, it still looks great Shadows: Not much I can say here,everything is perfect Background: I think a little more detail wouldn't hurt,mountains would be more realistic, have more details, optionally have sharp, rough edges as in the real world. I would say the same thing when it comes to trees - more details.
We come to the end,Generally I would describe drawing as a very good. Despite some oversights (which does not reduce the quality of the work or affect its appearance) you have done a really good job! I appreciate your work. Overall rating: 8.5/10
This is my first Critique,so feel free to comment. Also,I apologize in advance for any spelling mistakes, English is not my primary language.