This is a sentimental character piece by the prolific harpist and composer Charles Oberthür. It is characterized by its lush, harp-like textures adapted for the keyboard and its graceful, singing melodic line.
Focus on maintaining a smooth, singing tone in the right hand while balancing the arpeggiated accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
Bel chiaro di luna (op.91) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 5.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Bel chiaro di luna (op.91) lasts about 4 minutes.
Bel chiaro di luna (op.91) 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 Au matin rose by André Bloch, Black Beauty by Duke Ellington, Bright Eyes by Florence Price — see the full similar-pieces list on this page.