Oskar Posa's Albumblatt is a representative miniature of the early 20th-century Austrian tradition. Its musical distinction lies in its harmonic warmth and the refined sentimentality common in Viennese salon music.
Focus on the subtle use of pedal to connect the melodic phrases without blurring the underlying harmonic shifts.
Comparable difficulty and character — good candidates for what to learn next.
Albumblatt 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 Albumblatt lasts about 3 minutes.
Albumblatt 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 Für Elise by Ludwig van Beethoven, La fille aux cheveux de lin by Claude Debussy, Consolation No. 3 by Franz Liszt — see the full similar-pieces list on this page.