Paint Over

Here's the photo reference I found in the net.
I was using this as a guide on how snow and winter will look.

From here, I just paint over it using the reference.
Took me around 1 hour plus to paint.
Below was the one that I painted it during my class lesson.
I was not satisfied with it, hence I redo it again.
Hope it gets better.
But still, I feel quite noob in terms of painting.
Going to improve!!!!