This pair of vertical paintings, rendered against a dark, deep, almost nocturnal background, highlights the natural elements depicted through a striking contrast of light. 

Both compositions depict scenes of undergrowth, where botanical and entomological elements are arranged in a confined space, with no horizon or identifiable landscape. The vegetation consists of low plants, leafy stems, wild flowers and mushrooms, rendered with precise attention to texture and detail. 

Butterflies occupy a central place in both works. They are depicted in flight or perched at different heights in the composition, their wings spread showing colour variations ranging from creamy white to pale yellow, orange and brown, sometimes punctuated with darker patterns. Their arrangement creates an effect of vertical dispersion and visually animates the space. 

In the lower part of one of the paintings, a frog appears, perched on dark, damp ground, accompanied by small creatures such as a snail and a caterpillar. These creatures are integrated into the ground and vegetation, reinforcing the impression of a dense, enclosed natural environment. 

The flowers, modest in size, have simple white, yellow or orange corollas and are rendered with soft contours and smooth texture. The foliage is painted in a range of muted greens, sometimes bluish, with targeted touches of light. 

Sale of Mrs G. Maes of Lokeren, Brussels, 10 November 1920.