Ah, but I do need to look Monica! I have to look at your list!

At first glance I might try Janacek (I once prepared a lecture on him: I just hope I still have the material), Vaughan Williams and Nepomuceno (I know a thing or two about him which is not published elsewhere). Maybe Oswald too, come to think of itr, but I shall confirm the latter.

Let us hope I can deliver.

A striking similarity indeed. You'd almost think they were related.
It's not a very nice pic of Tveitt I chose though. Not even very characteristic, his features are a bit finer than this.

I enjoyed this one very much. I'd like to comment a bit on your chords which I found impressive. The authoritative playing indicates that you have fully digested the harmonic content in these. Big plus for a pianist, if you ask me.
Great but short. I hope you plan to record more of this composer.