Starting with your arrows, you're doing a pretty good job of capturing how they flow fluidly through space, and are also showing a good sense of depth in how the gaps between them get tighter and tighter as they move away from the viewer. You continue to apply a nice sense of fluidity to the leaves as well, capturing their motion as they flow through space - not just how they exist statically within it. You're also applying the principles of constructions very effectively here, building your subsequent phases of construction right off the lines from the previous phase, to maintain a strong sense of solidity and believability.

Moving onto your branches, your work here is solid. A lot of people seem to get the way the line segments need to overlap wrong (I probably need to redo the demo video or something) but you've nailed it quite well, and are achieving branch forms that feel solid throughout. There are some visible tails, but that's fairly normal. One thing you can do to address them is to purposely use that last chunk of the previous segment as a runway before shooting off to the next target. This means overlapping it directly, instead of drawing that next segment where the previous one ought to have been.

Looking at your plant constructions, I'm honestly really pleased with your results. It's not that everything is perfect - some drawings are certainly better than others - but it's entirely normal to have some duds whilst still understanding what the lesson has conveyed, and I'm very confident that you understand it quite well. You're particularly good with the demos - you followed them quite well, and built them up with a conscious attention to the constructional process. As you get into your own drawings, some of them are certainly a bit weaker as you get used to figuring out which forms to tackle in which order on your own, but the steps are all there.

I'm very pleased with your bamboo especially - you built up the branch forms well, and the leaves flow very smoothly. For the vase at its base though, be sure to construct it around a central minor axis line to help for the alignment of your ellipses.

For the no-name plant, you ended up drawing the end of the leaves towards the center as being open. This undermines some of the illusion that they're three dimensional. Try to always draw each leaf in its entirety - even if it means overextending it artificially. It's important because maintaining that simplicity of the form will help establish it as something real in the scene, and not just a flat shape on the page. In any situation, you don't want to leave a form open-ended like this - always cap it off somehow. If it's a leaf, extending it into a full leaf shape, or cutting it straight with a line. If it's a branch or something else cylindrical, cap it off with an ellipse.

For the frangipani, I do feel that the stems came out a bit stiff - definitely think more about how things are flowing through space when drawing the initial minor axis line and the ellipses themselves. Also, for the zigzagging pattern you added to the petals, there's no need - in general, ignore anything to do with local colour or patterns. Focus only on construction of the form, and then the texture (which itself is made up of 3D forms). Also worth mentioning - I don't think you put as much time as you could have when thinking about the flow lines of those petals. Investing the time in the earlier steps will pay off considerably as you continue on through the rest of the phases.

So! All in all, your work is great. You have a few things to keep in mind, but all in all it's coming along well. I'll go ahead and mark this lesson as complete.