10:51 PM, Wednesday August 12th 2020
You did a really good job on showing the forms of each of these plants!
The only thing I would say is to add some contour lines to plant 3 and also to the rounded top of plant 2.
The wonkyness in the plants you mentioned was probably caused by slow, careful lines drawn by your brain instead of your hand. Quick, confident lines are the key here. Ghost the path between each ellipse along the stem before committing to it. (I understand the growing impatience from constantly doing this and sometimes one can't help but to skip the ghosting and try drawing the entire stem in one go. But that's how wonky stems happen)
The same with the leaves and petals. When drawing them, do it in one smooth stroke. (which I see you've done for most of them barring plant 6, which has jagged petals) It seems you did indeed draw smooth lines at first for these, but ran over them to give extra line weight and that's what undid your previous confident stroke. Remember when adding line weight to your petals to not be sketchy with your pen/marker. Ghost over the line, then draw one complete smooth confident line. (It does take practice to succeed in keeping it on track with the existing line, but if it is not an exact duplicate don't worry, the new line is darker and that is the line the viewer will pay attention to) Also use the same technique of ghosting between the ellipses for the stems when adding line weight (with the line overshooting each ellipse slightly)
Try varying the line weight in your drawings. I can see that you went over every one of your lines with the same thickness in a lot of these. I'd just add line weight to anything that does not look clear or is getting lost in a mess of intertwining lines.
But all in all you did great with displaying forms which was the main focus of this anyway so I'd say move onto lesson 4 : )
Next Steps:
Lesson 4