Adele Lewing was a German-American composer and pianist whose salon music reflects the sentimental style of the late Romantic era. This piece focuses on singing tone and sustained atmospheric pedaling.
Focus on subtle voicing of the inner melody against the arpeggiated accompaniment figures.
Comparable difficulty and character — good candidates for what to learn next.
Berceuse (Op.14) 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 Berceuse (Op.14) lasts about 3 minutes.
Berceuse (Op.14) 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 Albumblatt für Clara Schumann by Johannes Brahms, Bright Eyes by Florence Price, Albumblad, EG 109 by Edvard Grieg — see the full similar-pieces list on this page.