I was bored, so I played around with some melodies from filly (funtasia). This is the result. And yes, the tempo is increased.
This took me half an hour to transcribe (copy the melody by ear) and arrange.  It is not technically 'orchestral', as it only has:

French Horn
Trumpet
Trombone x2
Tuba

Timpani
Suspended Cymbals
Crash Cymbals
Drum Set

Guitar
Harp

Violins
Cellos
Basses.