Yes, you can use asymmetrical shapes and designs on your website. In fact, they are in vogue now and one of the hottest trends for 2021. Asymmetrical shapes can give a website a funky feel and something unusual, which instantly attracts a visitor. You can get to know more about it in the portfolio section of any good web design company, as most of them create an exceptional design in this regard. So, in my opinion, you need to give this a shot as the results will be amazing.