Hi @Nat W., nice drawings! - Yes, I think crosscontour lines would help. You don't need to add hundreds of them, but one or so, on each form would help, like you've done in the wrist in the top right drawing. Drawing is much about communication. Crosscontours is a way to communicate form. Where you place the crosscontours and how many you put down, depends on what and how much you want to communicate. Often, communicating that the upper arm bone for example, is a cylinder, is enough. That's the case in this exercise I think. One crosscontour might be enough to get that point across. However if you want to show all the variations in that major form, you might want to use more crosscontours. Just be deliberate with them. When you're putting down a line you're not just putting down a line, you're communicating something. Think about what you want to communicate to the viewer. - The level of simplification is pretty nice. But you could be more decisive with the design. Some forms feel a little ambigous. Think about what you want to communicate and try to state it clearly. You might appreciate studying the assignment examples in the lesson. In Marshalls drawings the forms and planes are clear. - Keep an extra eye on proportion. In the bottom left drawing, for example, the hand is too small. There are some videos on proportion in the figure drawing fundamentals course (Human Proportions – Average Figure), but most importantly, start growing curious about proportions. Ask questions like: "How tall is the hand in relationship to the forearm?" "What's the angle between these points?" "Which one is largest: the hand or the scapula?" "How many heads down is the bottom of the sternum?" "Which parts are the same length?" etc. Develop an interest for proportion and you'll start to discover the relationships of the parts. I hope this helps :)