Oskar Merikanto's contribution to the genre is a charming, idiomatic miniature typical of Finnish salon music. It is characterized by its simple, folk-inflected melody and earnest, sentimental expression.
Pay close attention to the shaping of the melody to avoid a mechanical, rhythm-driven performance.
Comparable difficulty and character — good candidates for what to learn next.
Albumblad (Op.3) is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 5.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 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 Albumblad (Op.3) lasts about 2 minutes.
Albumblad (Op.3) 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 Berceuse by Adolf Gutmann, Berceuse by Georges Marty, Berceuse by Julius Bleichmann — see the full similar-pieces list on this page.