Input
This lighthouse project started with a question my kid asked me if I could draw a lighthouse with some heavy waves in the ocean.
I accepted the challenge and started doodling some quick outlines on a piece of paper that was already filled with some freehand drawing exercises.
Highlighted with a Uni-ball Gel Impact Black Broad 1.0mm and cropped in to make it stand out for demonstration purposes and way after the actual work of art has been put on paper.
Process
To highlight and pay respects to the creative process I have extracted, enlarged and overlaid the concept sketch over the result, showing how similar the product is to the original sketch. After creating the sketch I used a blank sheet of paper and outlined the contours with a Faber-Castell Castell 9000 HB, traced the lines with a Pitt Artist Pen, erased the pencil sketch and then started colouring the piece.
Output
These are most of the supplies I have used depicted alongside the finished artwork. I posted this image on my Facebook.