[lowfighter]

Meister, one thing which attenuate the forest monotony and hide the forest tiles a bit for the regions with pretty flat land: add a bit of height noise, whether automatically or manualy in FMB, map mode (done it on New Guinea manually so a lot of time required, one of the other maps which i'll never finish lol). The forest tiles will be then less visible and the flatland forest regions would look a bit more interesting. Avala's suggestion of having here and there holes in the forest might be a good idea too.
If whatever specific volunteer work needed, just let me(us) know!