Good day!

Arrows are pretty convincing, though there are some which are a bit wobbly or uneven. Leaves are also rather nice although some leaves which have black blobs look scratchy because it's not completely covered in black (you can use brush pen for that). Branches: Keep each branch consistent in width - no tapering. Also when you make branches you should keep them as thick as the base branch.

Royal Candles Speedwell - edges look zigzagged. Put detail with care (https://drawabox.com/lesson/3/2/zigzag)

Passor Flower(?) - on the right side you have your leaves merged. You should construct them individually just like you did you leaves exercise. See https://d15v304a6xpq4b.cloudfront.net/lesson_images/a1c758e3.png for a good example on how to do this. This is also a good way to construct oak leaves.

Catnip, Elephant ears - zigzagged edges

Overall you did a good job. Your plants have definitely improved in quality and you are ready to move on. Make sure you add these exercises (arrows, leaves, branches) to your warmups to keep improving!