Great!
Saw you needed some feedback in the audio advertisements thread, so here goes :)
Let's start with the positive. There's a nice uplifting feeling to it, giving it that extra bit of epicness. That said, it also sounds a bit 'cartoony', which is not bad, but I think the title is a bit too serious for the mood you've actually created. It reminds me more of pirates than of the need to fulfil my dudy, but that's just my opinion!
Anyway, you've also put a lot of variation in this piece, which is usually a good thing to do. Though some transitions seem a bit inconsistent because of it (more on that later), the different parts in general sound good.
Then there is the mastering, which is well done overall. Nice use of panning and velocity! Not many pay that much attention to the little details, and I'm certainly glad you did. That said, there are some parts where some of the instruments are really hard-panned to one side (timpani to the left, for example), which could use some work.
The quality of the instruments isn't really that high, which is quite a shame, and not all the instruments go too well together. It's not a huge problem, but you may want to look for some higher quality samples for your future projects. Your music deserves it!
There are also a few awkward transitions. Apart from that, the intro sounds like a build-up to some amazing climax, which sadly doesn't come untill later in the song. Try to make your transitions as smooth as possible.
Lastly, there's the rather unexpecting and slightly disappointing ending. Of course, this is still a work in progress, so I'm sure you can think of something clever for that :p
All in all, I quite enjoyed your music! So here's an 8/10 and 4/5 for you ;)