Hey Himanknyx, here's my critique.

Considering the lessons that differ from your goals, Drawabox has been structured in such a way that the lessons build upon and complement each other. Although someone wants to draw, for example, cars (lesson 7), they will still benefit from practicing on plants. And someone who likes plants will benefit from the rigorous training on cars. I hope this helps you make a good decision. Just wanted to point out that the lessons aren't random.

Organic Arrows

Your arrows look really good. They are very three dimensional and taper properly. Well done! The only thing you didn’t do was add a little shading to the overlaps, but that’s fine as I can clearly see you understand this exercise.

Leaves

The lines are confident and flowing, and you are doing your best to fold the leaves naturally. There are some that fold in a strange way (the large one on the left). I see you attempted to texturize one leaf and cut it in and out of form. It seems you didn’t use reference much, but good job overall.

Branches

Again, all your lines are confident, and the ellipses have been drawn through 2 times and aligned to the minor axis. Great! You did well connecting the ellipses into a branch, there are very few stroke “tails” and everything looks pretty neat.

There are 2 things I must point out: you didn’t change the degrees of the ellipses, and you didn’t draw a full ellipse for the first branch (you have an arc). Changing the degrees is very important because it essentially describes the 3D forms we are drawing – having all the same degrees usually makes a strange, orthographic drawing.

Plants

Comfrey and manuka – it looks to me as if you used a single large stroke for comfrey, and started texturizing but quit? It would’ve been easier if you had drawn more guiding ellipses for the stem like in the branches exercise. The leaves are drawn well, with the same mistake repeated from the above exercise – you cut in and out of the forms. The rest seems fine.

Umbrella plant – I don’t have your reference, but from what I’ve found, the leaves start a bit later, not in the middle, starting them in the middle makes your plant look more like clover. Also, I am not sure what the round shape is?

Fawn flower – this one is much better, but you didn’t use what you’ve learned in the branches exercise again.

Slippery elm and juniper berrier – these are better considering the stems/branches and leaves (except the cutting in and out of the form of the leaves). The textures on the right are much better – you used shadows. On the left side you mainly used outlines which should be avoided in Drawabox.

Ficus lyrata and ginseng – again, branches are good, and I’m glad that you draw through your ellipses. I don’t know your ginseng reference, but I think it might look a bit stiff, and ginseng’s leaves branch from a single point: see their 5-headed fork?

Aloe vera, ivy, rubber, cactus – nice work with using the branches exercise on aloe vera, and I like how you simplified your cactus. You can try choosing a focus point for the texture so you don’t have to do it all over the plant, just a part – much like in the Dissections exercise from lesson 2.

Mallow, cane, monstera – great job with the leaves of monstera – you cut only into the forms, this is what I wanted to see in the other plant drawings. Same for the common mallow – the leaves look good. I am not sure what the extra arrows are, though.

Clematis page – nice job here. You used your knowledge well. I can see progress and applications of the branches, leaves, and texture exercises which is really good.

Peace lily page – this looks fine, ignoring the arrows (?), but the texture of the lily isn’t really wrapping around, it looks a bit random.

Overall, I think you did quite well.