This Berceuse by Cécile Chaminade is a staple of early 20th-century French piano literature. It is characterized by its refined charm, idiomatic writing for the instrument, and graceful melodic phrasing.
The main technical challenge is the seamless, light articulation required in the right-hand figurations.
Comparable difficulty and character — good candidates for what to learn next.
Berceuse (Op.6) is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 6.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 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 Berceuse (Op.6) lasts about 4 minutes.
Berceuse (Op.6) 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 Bonne humeur by Cécile Chaminade, Berceuse by Cécile Chaminade, Alleluia by Cécile Chaminade — see the full similar-pieces list on this page.