Depending on the scale of the project, I'll make the drawings and renders as per your style requirements
Process
Give me the brief of the project - site dimensions, location and building size to determine the scale and therefore the price
Discuss on the requirements of what's required from my end and the deadlines. You can share reference images as well to help get the idea better.
Once the work commences there'll be a to and fro of discussions. It is recommended to be as detailed as possible when explaining the requirements so that the to and fro process can be reduced.
Once the design is finalized, the source files will be shared