I tried my best!

Here's what I could do. I'm not sure if a "block in" is just to get the proportions right and placement of light and shadows, or if it's also important to get the right values. In the video Stephen pass multiple time over the same areas to get them darker. At this stage is it still a "block in" or is he staring to add details? Maybe I'm overthinking this! Anyway, can't wait to try the structural method! :)

i didn’t have the photo of the reference you used so I decided to use a different one and challenge myself. This was a really good exercise, I think I could have taken it further still and there are definitely more adjustments I could have made but I think it came out alright, also I find it easier to see mistakes after I’ve taken a photo of my sketchbook

Allright, one of the things I find really difficult is keeping even preassure, applying even value, and not getting carried away. I might even have taken this one too far, but I’m really happy with it still. Another thing I find really challenging is not settling, as the lesson states, you want flexibility to be able to approach accuracy, but I often just look at a mark, and agree that it is correct and so I forget to check because I don’t see the need, even if its there.

Visual style part I. The first one I just screenshot your image. The other two, I looked for images on the internet that had a good amount of difference between light and dark.