This piece exemplifies the late 19th-century fascination with ethereal, light-textured music depicting mythological subjects. It is distinguished by quick, delicate passage-work that simulates the movement of 'sylphs'.
Developing the light, crisp finger independence necessary for the fast, upper-register scales is essential.
Comparable difficulty and character — good candidates for what to learn next.
Ballade des sylphes (Op.94) 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 Ballade des sylphes (Op.94) lasts about 4 minutes.
Ballade des sylphes (Op.94) 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 Bataille de fleurs by Théodore Lack, The Entertainer by Scott Joplin, 12 Variations on "Ah vous dirais-je, Maman" by Wolfgang Amadeus Mozart — see the full similar-pieces list on this page.