At first, after confirming the size and request of the illustration (A3 300dpi, pose with coffee and alcohol one by one), I gave this rough as confirmation. After confirmation of further details (A3 300dpi, two girls holding coffee and alcohol), I have sent this draft to the client to ensure everything is meeting his expectation.

After checking, I was asked to make the child on the left more mature and made various adjustments. Finally, I delivered one .psd folder. After confirmation, received a comment from the client that he want the girl on the left be more mature and I have made some amendment on the initial design. Lastly the illustration is delivered in .psd file.