There's no info about what games the levels are for, what polycount target, what texture res is being used etc... etc.... The one 'published' example says nothing about where it was published. Info would be nice.
The page transition animation is interesting ... the first time. After that, totally annoying. Put your portfolio(s) on the site. Don't expect people to do a download to see it. Do NOT release your portfolio as any kind of .exe file. That's just scary these days. Take the price list off the website. Note your services,…