This set of variations serves as an exploration of keyboard color and texture typical of late 18th and early 19th-century pedagogical and concert repertoire. It is a work of moderate difficulty that highlights classical grace.
The challenge lies in balancing the varying dynamic levels between the decorative runs and the underlying harmonic structure.
Comparable difficulty and character — good candidates for what to learn next.
Caprice et variations pour le pianoforte 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 Caprice et variations pour le pianoforte lasts about 9 minutes.
Caprice et variations pour le pianoforte 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 Piano Sonata No. 11 in A major by Wolfgang Amadeus Mozart, Andante favori by Ludwig van Beethoven, 16 Waltzes by Johannes Brahms — see the full similar-pieces list on this page.