Converting simple hand drawn sketches to PPT illustrations

I have some sketches drawn over graph paper that I want someone to make into a nice digital version without the graph paper look and/or update to look better so I can include into a PPT, the sketches are currently in black and white but would like to use color to be able to convey the message better during teaching The domain is aviation. All images should be 116:9 (1920x1080 preferably) I have ongoing work for this so the person might be selected to do recurrent adjustments for work like this