sea plant ink hand drawn on white background. laminaria, brown kelp, porphyra, ascophyllum

underwater kelp plant sea laminaria brown background seaweed ocean illustration food nature alga marine cosmetology medicine isolated china aquaculture hand drawn dermatology flora seafood health leaf floral saltwater green organic element logo fucus weed algae aquatic art chlorella spirulina white vector ink black line set kit ascophyllum porphyra