I will just comment on the Brahms because I have played it for 35 years.
First, you obviously have an affinity for Beethoven because that is what this piece sounds like. I have never heard anyone do that before with Brahms, but that is the impression I came away with.
What that means is that Brahms, unlike what some people think, is very straightforward in terms of what he wanted his music to sound like. He didn't like people overly messing with the dynamics or the tempo.
That doesn't mean that it isn't romantic music because it most definitely is. So, the first thing I would do is speed it up substantially. It is way too slow, which is what gives it the Beethoven effect.
Finally, which everyone disapproves of (like I care) I will leave you with a fairly conservative rendering of this piece. It is well thought out, it uses 19th century arppegiation and asynchronization, which is the way Brahms played it, and the tone is excellent.
I don't play it like this, but that isn't the point. The point is that Brahms music has to have a rhythmic flow, beautiful tone (which you have), and it has to have balance between the various sections (which you don't have).
Enjoy, and once you understand the concept, you will probably end up playing this piece much better than most.http://www.youtube.com/watch?v=0u9P2WO9Ok0