Very good looking!
I agree to what is mentioned about the tree.
Overall I find the roots a little bit too curvy as well. Which is in turn accentuated by being so pointy - but you already agreed to that.
Composition wise I would get rid of the left upper uprising thinny curvy root thing.
The falling diagonal from upper left to lower right framing the Heron and the farmhouse is great but I think it could do without that one stick.
It attracts too much attention of the viewers eye.
What about a few more bits and pieces of broken ice in the front of the tree - something ala Caspar David Friedrich
But maybe that would be too much.
Anyway, very cool image. All around the scenes you showed in the last weeks are just wow. You know your TG!
Cheers, Klaus