Overall: You have a solid understanding of constructional processes and your petals and branches look good individually. When added together, however, you do not seem to imagine how they connect in 3D space, which detracts from the overall sense of depth. I am not asking for revisions as you have demonstrated you know how to make components, but I suggest you practice drawing plants/flowers from angles other than directly above. Drawing top-down pushes us into this trap of drawing orthographically and ignoring the 3D world our window represents.

Arrows:

The arrows forming loops (on the right) have a good sense of 3D. However, other arrows could be pushed into the background more by having a gradual shift in the distance between arrow segments (tight in the background and loose in the foreground).

The direction of your crosshatching at intersections is difficult to read. However, the placement is consistent.

Leafs:

Good flow though at times your outlines do not follow the flow, most prominent with the four right-most leafs. Even if the plane you drew has a fold in the middle of it, try to respect that decision even if it is not the one you inteded.

Branches:

Smooth connections between branch segments and a fairly convincing degree shift in your branches.

I appreciate the long branches and appropriate spacing between ellipses.

Hibiscus:

The petals adhere to previous decisions and their flows have a consistency that reinforces the illusion of 3D forms.

The stem and stamen/pistil are continuous and the construction as a branch is correct. However, because of this the base of the flower is unclear even though it would not be visible to the viewer.

The border for your petals should be one ellipse drawn using the ghosting method (ghosting the ellipse before looping 2-3 times). It appears as though you drew the border in segments and only once.

Dudleya:

Petals have consistent construction and good flow (same as hibiscus)

Good job adhering to the flow of the petals and ending your lines at the tips.

Lily:

Demonstrates your understanding of constructional processes.

Sunflower:

Once again very good petals.

The base of the sunflower head and the stem do not meet (or meet awkwardly). While this is not something that the viewer would see, the purpose of this lesson is to develop our sense of 3D by visualizing these types of connections.

Lotus:

The petals feel flatter compared to some of the previous drawings.

This may be a different species of Lotus so it may not apply, but Indian Lotuses have square shaped receptacle in the middle of the flower which I cannot see in your drawing.

The distribution of stamen/pistils suggests spaces between each stem, which feels unrealistic for a flower to have.

Cassafias:

The directions of the branches and the oritentations of the leafs do not contribute to the sense of 3D in the drawing.

At some branch intersections it is clear that your line did not start at the ellipse like it should. Remember that you decided the placements of the ellipses. Do not go back on that decision.

Good job creating the shape of the leaf and then added the outline afterwards. Try to keep both the start and the end of each protrusion along your initial leaf shape.

I appreciate that you pushed branches into leaves and thinned out. It did not fully turn out but it was a good idea.

Snakepitad:

Good flow of the leaves individually.

Their bases are along the foreground of the pot, which suggests there is nothing coming from that back of the pot.

The degree shift in the pot, while in the right direction, is a bit too stark and stretches the perspective a bit too much.

Ansmoni:

I like that you added a bit of curve to the petal flows, even though it is a top-down view.

Good job following the petal shape when adding the petal outline details.

Daisy:

Many of your flowers are taken from top-down views. It would benefit you to attempt other angles to develop a stronger sense of three dimensions and how planes sit in 3D space.

The density of stamen/pistils from the center is well done. It helps clarify the roundness of the center.

The petals are consistent and follow a boundary.

Naffleren:

The top-down view makes it very difficult to understand how the body of this flower sits in space. Try drawing through the flower when an object is 3D.

Mushrooms:

Good placement of ellipses and changing their degrees. There are a couple ellipses that are exceptions but all in all they look solid.