Lesson 2: Contour Lines, Texture and Construction

2:09 PM, Thursday February 25th 2021

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Hey there! This was really challenging but still, it was fun! Although there are mistakes in almost every exercise, I hope that it's still somewhat acceptable.

Thanks in advance!

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6:22 PM, Friday February 26th 2021

Hi! Congratulations on finishing lesson 2, you're now officially done with the basics!

I'll be going over every exercise and give some feedback, if for any reason at all you're left with questions, please go ahead and ask.


In general these look fine, but there's a few things which I'd like to point out.

  • Quite a number of your lines still look hesitant. It also looks like you repeated lines in order to hide your mistakes, which in this case is wobbly lines. Keep in mind that you want to ghost these lines and make them as confident as possible.

  • The compression on some of your arrows is not entirely correct. Remember that as your arrows sit back further in space the space between the folds is smaller, and gradually increases as your arrow moves toward the viewer.

Organic forms

Your organic forms are fairly well done. Something which is very evident from your ellipses is that these are drawn with accuracy valued over confidence. It's okay for your ellipses to go a bit out of bounds, and is preferred to stiff-looking ellipses that do fit. Your ellipses do vary a bit in degrees, but not much, and some are done incorrectly. It's good to see you experimenting with varying degrees. The degrees of these ellipses show the orientations of these cross-sections in space which would either be more open or narrow. So when you make an ellipse more open, it shows more, and if it's more narrow, it would, naturally, show less. Using this, you can make your sausages appear as if they turn towards/away from us (the viewer.) Here's an image which really helped me understand this concept.

Texture analysis

The main thing in this exercise is having to draw cast shadows, I'm glad to see that's what you're doing. Remember not to fall back on random stippling here, which shows in your moon texture (the rightmost one.) You want to think about every mark you put down.


In some of these dissections you're focusing more on form shadows instead of cast shadows (e.g. beehive, corn.) You want to make sure you only draw the cast shadows. Don't forget that cast shadows are shadows that occur when a form block the light. The form shading in this case is on the form itself, while the cast shadows are the shadows projected on another surface. For your beehives you drew and enclosed the form shadows, while you only want to draw the cast shadows (the "inside" in this case.) You're also not really breaking the silhouette. I encourage you for further attempts to experiment with it more. (you can make outlines here.)

From intersections

This exercise is all about getting to know how 3D space works and how these forms relate to eachother. There's some boxes with extreme foreshortening but most boxes have somewhat similar foreshortening which helps make it look more cohesive. Make sure to take your time ghosting circles as it's imperative that they don't look uneven, if they are, they won't look like spheres.

Organic intersections

Remember that for this exercise you want to keep the forms simple, so two connected identical balls would be ideal. Something to also remember is to keep drawing through your forms. Apart from some oddly-shaped sausages they look fine, but the shadows don't quite work. Usually people tend to have their shadows stick to the form, which is something I also see you doing a bit, but there's also spots where there's too much shadow. If you look at the two sausages sitting on top of the bottom sausage (first page,) you'll see that the shadow is a bit too large. Your sausages don't always look stable. There's a bit of floating here and there and also a gap.For this exercise you really want to make sure the whole drawing feels solid.

All in all you did well, good luck with lesson 3!

Next Steps:

Onto lesson 3!

This community member feels the lesson should be marked as complete, and 3 others agree. The student has earned their completion badge for this lesson and should feel confident in moving onto the next lesson.
6:43 PM, Friday February 26th 2021
edited at 6:46 PM, Feb 26th 2021

Wow this is really detailed, thank you! I was a bit confused on the dissections exercise, thank you for clearing that up a bit. And you are right, I was too focused on making sure that my shadows in the organic intersections exercise weren't sticking to the forms themselves so I overextended a little.

I will make sure to go over each mistake you pointed out here, cheers!

edited at 6:46 PM, Feb 26th 2021
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