Creating visual space between your upper and lower half is achieved with a two piece bikini, so if you are comfortable with your figure go for it!
Otherwise, you may want to choose a figure flattering strappy style one piece, (not halter shapes). Look for cutout styles that help to visually lengthen your short torso.
Both of these swimsuits are perfect if you are petite with a short torso. These are a perfect selection for you to have a figure flattering look!