Redirection

Hi I have redirected my domain name https://www.weddingphotographerdordogne.com (this is a wordpress site hosted by 123 reg) to my new site https://www.lydiataylorjones.com. However when I click on it it is still going to the original site? Any advice? Do I need to change anything in my wordpress site?
I want to keep this site and use it as a blog so I have another domain name pointing to it too