Just my two cents, but I’ve heard some of Novák’s music and didn’t really think much of it. I think if one is going to write in an Impressionistic style, they need to create something new and fresh with it instead of relying on what Debussy or Ravel achieved. Novák didn’t do this and I have found pretty much everything I’ve heard from him went in one ear and out the other.
That is your impression, John, and I respect it, but I don't feel that nor share it. In fact, I don't have any problems with composers that don't have a unique or recognizable voice like Ravel or Debussy, for me it's not a requirement to enjoy works by others. If music sounds good and I like it, that is what I care for. In addition, Novák not only did compose in an Impressionistic style, but he did in other styles, as can be evident in works like the 3rd String Quartet, which I rank very high. Another work I find interesting and doesn't sound impressionistic is
De Profundis. IIRC, The Storm has some Impressionistic elements, but as a whole is a masterpiece of tremendous drama.
I could mention composers you like but I don't and that I don't think are great, but I think it's pointless. Anyway, it's interesting to contrast opinions about music!