[please insert greeting according to your time zone :P) folks!
I really like forests in this game, way better than in you-know-which-game! But still thinking there's room for improvement. Specifically I'd like to have a varied age of trees. Not necessarily a complex stage progression but simply a worldgen thingy. E.g. give each tree species a "small" version like the fruit trees with a 1/4 thick block. Maybe even a 1/2 version for more variety. These young trees could also maybe just drop firewood/sticks instead of logs or a "small" log variety usable for the existing palisades or a replacement for the fairly large logs needed for the rough fence etc.
Besides, this worldgen should also include a percentage for spawn rate of these smaller ones. Birch trees are very rare to find in reality with a stem measuring 1m diameter. For these species there could be a 70/30 ratio for small/large individuals.
Also: Maybe include beech trees as new species? Its basically one of the most common trees found in northern hemisphere. Would spice up the temperate climate zones.
I'm trying to learn modding this game, maybe I come up with a proper mod for this :).