This Ballade by Heinrich Neal is a character piece that emphasizes harmonic lushness over technical display. It provides an excellent study in maintaining a consistent melodic line through varied textures.
Ensure that the left-hand accompaniment does not overpower the expressive, singing quality of the right-hand melody.
Comparable difficulty and character — good candidates for what to learn next.
Ballade (Op.73) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Ballade (Op.73) lasts about 5 minutes.
Ballade (Op.73) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Auf einer Burg by Heinrich Neal, Blumenstück Op.19 by Robert Schumann, Bajka by Stanisław Moniuszko — see the full similar-pieces list on this page.