Yes, it looks like I cheated and took a really easy image. I was actually saving this one for a day when I had very little time, but then I realised I struggle to give form to hills, so it became good practice.
A lot of growth in your value studies. You still make things a tad too light, check the top of the sky gradient in the photo and in your study.
Also, if you're going to do gradients now, you should also include edge control. No more brushy edges; if something is hard edged or soft edged, make it that way. I'm looking at the trees, their shadow, and the horizon specifically( good treatment of the clouds). Use the lasso tool to make the process easier.
A slightly derpy 4 armed werewolf. Just got a set of copic cool grays so I really just wanted to try them out.