Please note that you will be receiving a scan, not the original sketch. The sketch is done by hand with pencil and charcoal on paper. I do not do digital sketches or photo filters.
I will draw a detailed pencil portrait and I will scan it in at 2000 dpi, which can then be rescaled to fit any paper size you want (e.g. A5, A4, A3, A2). I will provide you with the .tiff, .jpeg, .pdf, and .png files, depending on what you would need.