Brocéliande is an evocative character piece by Lucien Lambert that draws on French late-Romantic sensibilities. It is notable for its rich, Impressionistic-leaning harmonies and lyrical, wandering melodic lines.
Work on balance between the inner voices and the primary melody to create a lush, atmospheric texture.
Comparable difficulty and character — good candidates for what to learn next.
Brocéliande is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7. In the RCM system it corresponds to about level 6.
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 Brocéliande lasts about 5 minutes.
Brocéliande 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 Aux bords d'une source by Alfred Jaëll, Canto de Sirenas by Carmen Barradas, Berceuse Op.57 by Frederic Chopin — see the full similar-pieces list on this page.