Third page hype~.
Regarding the snowy piece from the second page, I think the lighting is fine. Overcast light setups don't produce drastic shadows. I mean I guess you could add them in for personal reasons, but I think it's fine as is.
I know these are mostly all older works you're posting, but the volume of them is still impressive. I'm trying to build up my art stamina at the moment.
I think the only thing that sticks out to me for a crit is that the valentines one seems to have a bit of wonky perspective. The top of the mailbox unit shows a lot of the top surface but the characters don't seem to reflect that, they seem a like we're getting a little too much of the sides of them but not enough of a top down. I could be wrong, I'm still working my way through perspective myself.