I want to talk about the economics of building a brush pack business on top of a digital art practice, because the income can be meaningful if approached correctly.

The product: a brush pack that solves a specific problem. Not 'brushes for digital art' but 'brushes that replicate gouache on canvas for Procreate' or 'brushes for fast environment blocking in Krita.' Specificity sells.

The price point: I've found that packs priced between $12 and $25 sell more units than packs priced under $8 or over $40. The under-$8 market is competed by free packs. The over-$40 market requires significant reputation.

The marketing: a video demonstrating the brushes in real use is the most effective marketing. Screenshots of the brushes available in the pack sell to people who are already looking. The video sells to people who didn't know they needed the pack.

The passive income reality: a successful pack generates meaningful income for about six months after release, then plateaus. It doesn't replace a commission income but it supplements it without adding proportional time.