Tree of friendship

This is another commission for someone over on Animexx. I know the title sounds kind of cheesy, but it's really cute if you know my clien'ts background story to this picture. It's a birthday present for his penfriend "Geli" which he has know for over 5 years. They have met a couple of times but they're still writing each other letters.
He comes from the middle of germany and she's from the north, so this is why the background sort of doesn't match.