Creating abstract botanical illustrations can be done in the style of many known art methods, including washed ink, paper blotting, and paper masking, resolving into backgrounds and patterns with great variety.
Some favour sketch methods more than the others, with the line work apparent in the final piece and more negative space used intermittently to balance the white background with the gentle pink tones and light greens of the petals and leaves.
Others involve the use of colour more boldly, with the motif of flowers and leaves still apparent, but used more as a jumping off point for storming reds, dotting greens, and splashes of purple, blue, and orange.
The colour pallets of each abstract shown here tends towards warm tones of red to purple, but also frequently include mellow greens, shades of natural brown, and delicate lilacs, in order to aspire to a balanced and complimentary piece, unified by its many parts and elements.
These more abstract illustrations incorporate the same hand-painted watercolour imagery as much of the other work exhibited on this site, and would fit very well as nature themed decoupage, collaging, or as part of your scrapbook or nature journal.
Natural themes and imagery can be a consistent and present element throughout your nature journal, so you can exhibit them together if you choose to create a unifying visage, but also one where the individual abstracts remain distinct.