This is a virtuosic arrangement based on themes from Weber's opera Oberon. It is distinctive for its dramatic operatic flair and decorative piano passagework.
Balance the melodic lines carefully against the delicate arpeggiated accompaniment.
Comparable difficulty and character — good candidates for what to learn next.
'Oberon' de C.M. Weber (Op.99) 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 'Oberon' de C.M. Weber (Op.99) lasts about 5 minutes.
'Oberon' de C.M. Weber (Op.99) 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 'La straniera' fantaisie by Pierre François Clodomir, 'L'elisir d'amore' de G. Donizetti by Pierre François Clodomir, 'L'elisir d'amore' fantaisie by Pierre François Clodomir — see the full similar-pieces list on this page.