As always, thanks for the feedback/comments.
This is a really cool drawing! I like the overall layout of the picture with the pond and the mountains in the background and the characters' poses are quite nice too. Each of them seem to have a unique and in-character position in the picture so good job with that!
For the background I really just threw in what you would expect in the valley. The mountains are similar to the ones I did for the Great Valley Yu Gi Oh card I did earlier this year just with colour. It seemed to turn out alright so I'm happy.
Coming up with the character poses was probably the most fun for me. Most of the characters fell into place fairly quickly. The biggest exception was probably Chomper. I didn't know what I should exactly do with him. First he was going to have his back to the log, beside Ruby with a snowball in hand. After I couldn't get it to look right I tired a similar pose but on the side of the log peeking around the corner but had troubles again. The final idea was to have him crouching around the corner for a sneak attack, which is what the final product ended up being.
However, there are a few things I'd point out like Ducky and Ruby's heads. Ducky looks really weird (her face is too high for example as you implied) and Ruby's neck and head seem too small. Also, there are some problems with Petrie's face and his eyes look in different directions.
I'm not surprised that some characters look off given the increased scale of the drawing coupled with the fact they were for the most part done from memory. It's these parts however that feedback is most useful when you don't have an exact reference to examine so it's all the more appreciated.
Ducky is someone that I clearly need to practice on as I feel like I'm having a hard time getting her face right.
It's funny with Ruby becuase the first time her head was even smaller so I re-drew it to it's current size. I guess I never drew it big enough. I'm not too concerned about this but it's good to be aware. I always have had a tendency to draw smaller then I should.
Finally, the ground looks quite empty but I understand it would be too time-consuming to do that in a large picture like this.
Yea I was fully aware of this throughout drawing. I never worried too much about it as I figured I should keep things slow. This is the first fullscale art that I've done to any meaningful degree and it was nice to use snow as an excuse to leave white space on the paper. I had some more ambition in planning to have footprints scattered about to help it look less blank but in the end didn't want to go through all the trouble. Another thing is if you look closely to the right side of the fallen log there are semi circles cut into the log. Those are supposed to be Chomper's bite marks where he chewed through the side of the log to hide under the overhang as he sneaks up. I was going to have the spit out wood chips in the bottom right as well but dropped it for the same reason.
On the other hand, Chomper and Spike look very good as does the rest of Ruby and the action in the picture is done really well. Despite some flaws with the characters, the picture as a whole is quite great and it's a good way to wrap out this year! Good job!
It's good to hear that you like how Spike turned out. I was fortunate that him trying to bury his head in the snow made sense so I never had to put too much effort into him
Chomper is the one I am most proud of as well as the rest of team Littlefoot.
well,some faces of characters are... derpy.
But otherwise - this is cool drawing!
Haha good to know. Expressions are kinda fun to work with and I might have another idea in store for practicing some of them.
I seriously don't think I can beat this 
Wow!
You can do it, I believe on you!
[EDIT]believe on you? ... That sounds wrong.
