How to Dress Up the Button-Down Shirt
Draw a men’s button-down shirt.
Draw the top half of a guy. Map in the curve of the neckline and a V shape. You get a V shape because the top button is undone.
Place buttons down the center front and draw a line left of the buttons. Follow the body as you draw shoulder, armhole, and side seams. Draw a line that connects the points of the collar to the curved neckline, creating a triangle shape on each side.
Add sleeves and a bottom hem. Finish with cuffs, another seam line next to the buttons, and topstitching. Include a pocket on the front of the shirt if you like. You can also add a top button to the left and a buttonhole on the right.