Here are couple of pictures from my AH-skins and original photos, too. That new skin is not released, but I hope it is coming out soon...
Maj. Eino Luukkanen's MT-201 should be a nice one to do. From that skin picture you can see the correct places and sizes of the Finnish Bf 109 G2's marks and signs on the fuselage and wings:

We have a very few photos from the upper wings of Finnish 109's, so I had to made the wing camouflage using normally German plans.
An old profile-picture, where the camouflage around cockpit is not so correct if you compare it with the original photo:

Here are original photos from this fighter:


Somebody has made model, but my opinion is that colours are a little bit too brown:

German RLM 74,75 and 76 were used with our 109's but as you know how knows exactly those colours nowadays...
Mostly all Finnish 109's were only overpainted with our Finnish signs and the camouflage and other colours were original German. Some fighters got the Finnish camouflage: Dark olive green and black, as you wrote. For ex. this one:

I have also nice Bf 109 G2 black and white plans if you need them:

Tell me what individual G2 you are going to do and I send you high resolution pictures from my books (I have a scanner).
