If you want a nice photos on your modelling portfolio, you need to hire a professional photographer or at least a person with a knowledge about camera and photography. You need a photos with different angles and shot. This are the shot that you need ( clean head shot, full length body shot, swimsuit shot, smiling shot, and strong closing shot ) you also need to include your body statistics on your portfolio. You need a hard copy of your portfolio so you can show it personally and easily view as well as a website or online portfolio so you can easily send it to email when they ask for it. 

You can visit my online portfolio : michellerolfe.portfoliobox.net and if you want to create your own online portfolio you can use this free online website: portfoliobox.net 

pictures below are example of my portfolio (hard copy)