Need Some Help With Orchestration Options

[new user]

Hi everyone, just stumbled across the site and thought some of you might be able to help. I am a student at school and am writing a piece to be played with the school orchestra in contemporary/rock style (the orchestral songs from silvchairs diorama is similar to the style i have in mind).

I play piano and guitar and have a good understanding of music theory but realise that there are many rules and conventions which must be followed by various instruments in the orchestra.

I have some good ideas for the brass and strings section but i am unsure how to use the woodwind section. At the moment i am doubling the melodies playing on other instruments but I was wondering whether people could offer some suggestions on some things to try for the woodwind section. Eg what sort of lines/phrases, what combinations of instruments used together etc

Any help or discussion will be greatly appreciated.

Thanks and well done on a great forum.