For the firstdrawing the only material i used was pencil. I looked up for examples online and used them for inspiration to create my own. To create the pattern i used a combination of the same lines in diffrent directions to create an ilusion.
For the hand i also used a pencil. This drawing focuses on the negative space so there isnt inside detail such as wrinkles, nails or anything like that, just the outside line. For this, i had to focus on the details of the outside for a more realistic drawing. I had to keep checking my hand drawing looked proportional.
For the leaves one I used leaves to draw the outside, and used the negative spaces for my patterns. I used a diffrenet pattern in each negative spaces. I started sketking out the outside of the leaves, and once it looked proportional i used a marker over it. Then, i designed my own patterns in pencil and used a marker over them. After, i coloured it in with black for a better effect.