Hi RJ,
For your first app asset, I can focus on one simple fantasy item icon with editable SVG source and transparent PNG exports. The potion, gem and other props in my own Menu Marks project show the style: https://asafdallal.itch.io/menu-marks. Those are personal-project examples, not client commissions.
I create these vectors with AI assistance. Would that workflow and style fit your app? My starting estimate is US$25 for one agreed item and one consolidated revision, with nonexclusive commercial app use of the rights I hold.
We would confirm the asset, references, sizes, price, usage terms and delivery date after reviewing your brief. I handle requirements and feedback through written itch.io messages, without calls or interviews.