Currently I do this song, and because I have been doing music only after 5 months, this is a slow process. I gather this only by ear, because I have no experience with orchestras =)
I don't think you can say your progress has been slow Juha. You've come an amazingly long way in a mere five months (gosh is that all!?!?!?!??!). You have a very good ear, and this is another lovely arrangement. Solid and well arranged - to my admittedly untrained ear. Great soundtrack material. Very visual.