Difficult to tell ...

First of all its quite nice and there is potential to expand it.
But i also have several problems with it :
It lacks of dynamics and tempo changes (that makes classical music out).
The doublebasses are pretty loud in the mix - its like they are playing fortissimo the whole time. The solo violin is not good that way - let me give you an advice. Solo strings are never good to be played by plugins - to be exact, its impossible (in my oppinion), because it sounds so totally different and unnatural. The only way i see, is to get someone to play the violin and record it.
The horn sounds also pretty unnatural because the "player" doesnt need to breath - he is playing the whole time without any pause. Make some rests and add some dynamcs aswell.
The composition itself is expandalbe.
I noticed you have some patterns you repeat and bring together at the end.
It sounds pretty heavy because of the doublebasses with drums, which i already mentioned.
Especially when the bells play - i would like to hear some more woodwinds in that part .. leaving out the doublebasses replaced by a harp for example.
I know you wanted to maintain somekind of march - but it also works with less or different instruments. But i liked the part where the horns set in combination with the cymbals ... maybe you reapeated it just a litte bit too much.
Another problem i see is, that you have a big gap in the middle register .. there is high and low but nothing in the middle - so there is plenty of room for other instruments playing countermelodys, rhythmic additions or something else.
You can also corrupt the march thing and suprise the listener with sudden elements like a stop with a rebuild to the original march theme.
Im also missing more different harmonys - its mostly the same cadence - maybe you can make some break with moving a 4th upwards and play the theme in that key - just for example.
I cant tell you something about the mix right now - only what i hear, that there is no stereophony and back and foreground.

So far thats all what crosses my mind right now.
I want to give you some advises with my critique, because good critiquie is quite rare on newgrounds (as i expericened).
You have to practise more and it will work =)

So i give you a vote of 3 and a score of 6.
Im sorry if there are any misspellings.

Beautiful

Reminds me of In the Hall of the Mountain King

Now nice quality sounds yes..

Some royal music here. Great quality sounds bud. Excellent work on the instrumental. I Like the marching drums, the horns, little bells, the cymbals, strings and quality sounds throughout the whole "March of the Dreamer" Excellent project you have worked on. Nice variation and Effort put into this.