Why do you have your 1072 going to the dac? I think there's a good chance it will sound better by itself.
To answer your main question, it looks like you got pretty decent results on your first try. Most people don't get a PC setup to sound as good as a CD player on their first attempt. With a computer front end, there are a lot of variables you need to work out for best sound. How did you rip your CD's, what format did you rip to, are you set up for bit perfect, are your PC and player configured properly, etc.., are all things you need to look at before you can fairly judge what you are hearing.
To answer your main question, it looks like you got pretty decent results on your first try. Most people don't get a PC setup to sound as good as a CD player on their first attempt. With a computer front end, there are a lot of variables you need to work out for best sound. How did you rip your CD's, what format did you rip to, are you set up for bit perfect, are your PC and player configured properly, etc.., are all things you need to look at before you can fairly judge what you are hearing.