David, I could listen to both examples. I understand how much Bruckner influenced you, despite a more modern harmony! It's music that can flow contiously between powerful and meditative, with vast areas of light and shadow. Orchestral colour is really a fundamental ingreadient of your music!
I like NotePerformer for how immediately it allows one to make a clear image of the music. Its artificial intelligence has really great musical taste, and can render any style in a very musical way. I have however a couple reservations on it for my personal use: first of all, the more dense the orchestral texture become, the least realistic it is. Great for small ensembles, however.
The second reservation is that it lacks extended techniques. I hope sooner or later an expansion pack will arrive, with more techniques. If one doen't need them, no problem. If there is considerable use of them, NP can't translate the score.
Making a rather realistic rendition of a score with sample libraries is a lot of work, sadly. I guess that more expert musicians can work faster than me, and achieve great results in a limited time. I think it can be done, and this heavy work can be – admittedly – also very fun!
Paolo