Liszt's S.163f is a delicate work that highlights his capacity for subtle tone painting in his later career. It is technically restrained but requires significant maturity for effective emotional communication.
The main challenge is maintaining a consistent, expressive tone while managing the wide shifts in register.
Comparable difficulty and character — good candidates for what to learn next.
2 Album-Leaves (S.163f) 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 2 Album-Leaves (S.163f) lasts about 4 minutes.
2 Album-Leaves (S.163f) 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 Consolation No. 3 by Franz Liszt, Ave Maria d'Arcadelt by Franz Liszt, Ave Verum Corpus de Mozart by Franz Liszt — see the full similar-pieces list on this page.