The few submissions I've seen from musicians here have been surprisingly good. And listening to the first track brings me to that same conclusion.
However, a casual listen to this submission makes me feel like the sounds are too "smeared". This is probably the reverb. Without reverb instruments are too separate. With too much they blur together. I think that's what's happening in this submission. I don't feel enough separation between sections. Orchesterally as far as the arrangement it's pretty nice. It conveys a very nice sense of urgency. You can almost cut the tension with a knife. I like it. I think it's a very good scoring piece. Towards the end it starts getting a bit repetitive. But overall, I like the tension and urgency in the piece.
With the second piece, again the space feels wrong. This is an audio recording thing. Recording is a skill. Sound Engineers dedicate their entire lives to the craft of merely recording. They don't play anything. They don't arrange anything. They merely record. And that's a lifetime of effort. I think that's where this is weak. The musical composition is impressive. I don't know if this is from the movie or if you composed it, but there's talent in the composition and arrangement. The recording is killing me though. Again, probably too much reverb. If you are using bad samples/instruments that don't have a nice tonal quality, smearing them with reverb doesn't fix that. As it stands, I like the composition. I like the arrangement, it has a nice "game" feel. But the reverb is smearing the instruments that just makes it difficult to hear the composition.
I'm looking at the curve of your sound wave and it looks like you may have compressed the life out of this track too. There's little to no dynamics in this track. I would like to have the dynamics back. I don't know if the lack of dynamics is due to too much reverb or compression, but dynamics is an important part of musical expression.
I'm giving you my ugliest comments here. I tend to not pull my punches, especially with music. But seriously, you're on the right track. I like what I hear even if it needs a new recording engineer cleaning up the recording. ;-)