hand drawn various mammillaria cactus

anfractuosus asterias astrophytum atroflorens background beautiful botanical botany brown cacti cactus crispatus crispiseta decoration dollar drawing drawn echinofossulocactus ecology environment erythra fishhook flora fresh garden graphic hand hernandezii hookeri houseplant illustration isolated magnimamma mamillaria mammillaria mexican nature neomammillaria nipple peyote pincushion plant sand schumannii sea sketch star stenocactus tree tropical urchin various watercolor white wrightii