There's a gaping problem here in the production, and that's this: the instruments don't fit their notes, and the notes don't fit their instruments. There's 0 expression on any of the orchestral elements, so they sound mechanical and fake. Yes, the original sounds like that too, but it's an OST, not a remix. With a remix, you have the resources to elevate the original. Additionally, somehow the synth bass sounds mechanical as well. Are you doing anything with your velocities? If so, it's too subtle to notice, or the bass is a sample that keeps using a similar phase (i.e. retrigger-like). Or the velocity response on it is set to nearly 0.
And the one major problem with arrangement: it gets very repetitive. The synth bass never changes rhythm or intensity, and when it "does", that's when it's not present. The drums don't really change between the copy+paste, nor does the collective rhythm of the orchestral elements. Here's what you copied and pasted:
The basis of the instrumentation at 0:39 - 1:43 is used three additional times (in a row... ), while you added a flute, and then a sine pluck, then some high brass, then some sort of slow-attack lead for a fast melody that pretty much matches the sine pluck melody at that point.
The drum patterns
It's just too little development for such a long, looped piece, so as far as I'm concerned, you only wrote 1:43 of remix. Not to mention it sounds suspiciously close to the original, so it's practically a MIDI rip, even if you didn't use a MIDI.
Lastly... abrupt ending, which is just another partial copy+paste.
So, sorry to say, but I'm not getting "modern" from this. It kinda sounds like the original plus two synths.