Theme advice needed for portfolio site

Hi, I am looking for advice for theme suggestions. I am new to WP and do not know any code. I have a small graphic design studio. I created my site in a commercial theme (I know you do not support these..stay with me)and the theme is Total by WP Explorer. I am new to WP and find it complicated to use and there are sometimes issues with the new updates of the theme despite me using Child Theme. Currently there is a bug with the Visual Composer and my portfolio section does not link correctly… I am waiting for help from the author (have read the forums for the theme). My site is quite a simple portfolio site: https://www.camdendesign.com/ perhaps someone can suggest a theme that Is easier to use, less bloated, less buggy? Again, any help is really appreciated. I just am not sure it should be this complicated. I just want to have a simple site that I can trust to do what it needs to. Thanks, Hillary