Repertoire suggestions

[tenpasten]

Hello.
I've recently performed Scriabin's Valse op. 38 and am now looking for some more repertoire to learn. My brief is something harmonically interesting ie beautiful but moments which make your ears prick up (much like the valse). Something I am really trying to find is a piano equivalent to Messiaen's O Sacrum Convivium. Harmonic interest but with moments of clear resolution essentially. I have too much Scriabin and Rach in my repertoire so preferably some other composers.
Any help would be greatly appreciated.
Thank you.

[pianistavt]

Have you considered:
- Nikolai Medtner
- Nikolai Roslavets
- Samuel Feinberg
- Karol Szymanowski

[tenpasten]

Roslavets sounds right up my street. Do you have any recommendations that are on the more tonal side of things?