Nice job overall!
It's nice to hear from other fellow classical guitar players.
One of the true challenges of classical guitar, as you know, is that you are TOTALLY exposed. There is really NO room for error, and nothing to hide behind. Your performance, though not totally flawless, is really very good. It doesn't sound like a very easy piece. What is it?
The recording sounds nice. It covers a very wide frequency range... some very low stuff (deep tones on the bottom strings) and fairly crisp highs on the top strings. You get a nice balance of warm and crisp on the middle and high strings. The reverb is judiciously applied. I recently bought a pair of the ECM8000's myself, and have found that controlling the sound of the room is more challenging with these mics than many others, as they are VERY omnidirectional. You don't seem to have any unpleasant room sound in your recording.
My only criticisms are pretty small, really. There is a hissing throughout. I don't know where it is from, but it is quite possibly an issue with setting gain levels at some point in your chain. A quick search on the net suggests that it probably isn't a problem with your pre-amps, or anything like that.
Also, and this is just personal preference, perhaps... I like the A and E strings to be very crisp and bright sounding. Your guitar, in this recording, has those strings sounding more warm, but less defined than I like... like maybe your strings have seen better days. (maybe not, though, as the tone is okay - not dead sounding... it's just not as bright as it could/should be - maybe it's the guitar or the recording??)
... just wondering, too.... what did the track sound like without compression? Did you really need it? Maybe the compression is guilty of losing some of the crispness of the bottom strings?
What kind of guitar are you using? What kind of strings are you using? Personally, I like the D'Addario Pro Arte J46 Extra Hard Tension strings... the bottom strings are very bright, crisp, and well defined on a nice guitar.
Keep up the good work!
Chris