Playful Mother and Child

Create a sketch in the style of a field guide illustration of mother playfully tickling her 8 year old child. The lines should be natural with varying widths and values. The image should feel meaningful and represent playfulness No text or writing. --ar 2:1 Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.