Observational Plant Drawings

here are different monochrome drawings of a plant.
for this plant drawing i used a fine brush and tried to focus on the plant in detail such as focusing
on the lines of the branches and leaves and adding a little bit of tone 

for this one i switched to a red ink and used a bigger wash
i concentrated on getting a light wash and then worked over it
with more concentrated ink. this emphasised certain tones.

this one i went in with my thickest brush
i usually work with small media but i think the thick brush
added bold tones to my drawing.