Georgy Catoire's '3 Poems de Tyutchev' Op. 18 are song settings that capture the philosophical and natural imagery of Fyodor Tyutchev's poetry.
Requires a sensitive touch and a deep understanding of Romantic harmonic language to convey the poetic depth.
3 Poems de Tyutchev (Op.18) is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
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.
3 Poems de Tyutchev (Op.18) is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.