Visual description: Leaf - one species of oak

Visual description: Leaf - one species of oak. placed horizontally: left part: leaf outline, empty, as if disappearing, center: skeletal structure (leaf veins), right side: full leaf. Possible variant: reverse transition - from fullness to emptiness. Additional detail: small shadow under the leaf, as if floating in time. Phrase: "Respice finem" (see at the end). Style: fine line + botanical precision. Placement: horizontally on the forearm.