yeah, i agree.
The greenland map is shown here, but i dont know, where he got this map from and if it is official or fanfiction.
but i have to somewhat “disagree” on your point about the european steppe/himalayan border. eurasian steppe and siberia have a smooth transition and there is no real border (yet) since many of the same rivers are shown in both of them (river east of green line e.g.) → a border between himalaya and eurasian steppe is unlikely i think
i also think the open area east of anatolia would have a strange border for only one map, so i hope they split it into 2-3 areas with a) being something like kurdistan(?) and b)+c) being persia/persia+afghanistan
edit: the area between urals and muscovy is pretty identical to the borders of komi+nenetsia, but i dont know wich name would combine those 2 oblasts into one