Sounds like a fairly typical symphonic orchestra (synthesized from the sound of it; it's missing a human touch). Strings are very prominent, woodwinds doubling the occasional phrase for texture, not really hearing brass much. Assuming you're familiar with the composition of a symphonic orchestra in general, some of what you might be hearing that's unfamiliar might just be textures resulting from the combination of several instruments playing at unison/octaves.
Is there something in particular you're trying to identify?