While I don't get submissions for this challenge often, generally when I do, there are still plenty of things for students to continue working on and honing. That in and of itself isn't a problem - these are exercises, and the feedback we give to students is intended to help guide them as they continue on the same work. The work that never really ends, that we continually revisit in order to continue sharpening our skills.

There are a couple minor points that come to mind in regards to your work here, but overall I am very pleased with your results here. They show the kind of decision making and considerations that truly reflect an understanding of texture not as decoration a long a flat surface, nor as something that is drawn from direct observation, a one-to-one copy from a source to the destination drawing. Your work here demonstrates a clear consideration of every form present along the surface of the object being studied, and how it relates in space to its surroundings. So, to avoid rambling too much: fantastic work.

Of course, as I promised I do have a couple small points to offer. One of them is a point I noticed in your very first texture (the bread texture here), you had your shadows being cast towards the right. This is admittedly the only place I saw this issue, and it's right towards the beginning, so all of that suggests that you likely understood what went wrong to begin with. I am of course scraping at the bottom of the barrel here looking for something to critique, so we're going with it.

Basically, the way the texture analysis exercise as a whole is structured, our light source is positioned far to the right of the gradient, and so the shadows the forms cast would be going to the left, as shown here in this diagram.

The other point I wanted to call out - and again, it's quite minor - is that while some of your texture gradients do a great job of creating a very even spread of dark to light (for example, the honeycomb on this page), there are cases where the darks get crushed over to the far left, resulting in a midsection that is all fairly even, but then suddenly gets very dark, very quickly. We can see this in the roses and tree trunk on this page, and it definitely stands out most starkly for the roses. As we move further to the left, every shadow that gets cast should be deeper, being cast farther, and covering more surface area leading to less light actually reaching these surfaces.

Admittedly the difference is hard to notice, but here I've taken the shadows on the lower one and tried to push them a little farther, in order to bring that dark area to the left and spread it further to the right. Always keep in mind that what's resulting in "more dark" to the left is that the shadows are being cast longer. In fact, the diagram I used for the previous point helps here, as it demonstrates why those shadows get longer and more expansive - it's because the angle at which the light's rays reach the top of the given textural form will be shallower the further to the left it is.

Anyway! All in all, great work. I'll go ahead and mark this challenge as complete.