Use suitable drawing tools.
Paper- Smooth white paper, not textured. Ivory, creme is also fine, because background color will be easily removed.
- Thick enough to absorb pen pigment. 80g white printer sheet is a great option.
Pen- Black pigment liner size 0.1 for floral and botanical drawings. Size 0.2 will work better for geometric shapes. Size 0.05 will help add extra detail. Size 0.05 sometimes might be too thin, and AI migh ignore such thin lines.
- Apply enough pressure on your liner. Find a balance between a sufficient line thickness and an airy natural look we're trying to create.
For our purpose we don't need a perfect illustration. At this stage we are creating raw material, which we'll later process and adjust in Illustrator. If some lines, shapes, sizes feel wrong, no worries! We'll correct them later.