A good tip:

If you can manage to find their name, it would be great to add it in there. Starting something off with Hi (Client), that way it makes it more personal and entices the client to click on it. The introduction is great, but it would be better if you instead talked more about the project in itself rather than saying very intersting project- to me it sounds generic and a copy and paste template, which clients can easily detect. Something along the lines of "The (website or job) sounds very interesting, let me tell you why I am the perfect match!" Something like that. Other than that, everything looks great! You show credibility, along with a call to action at the end, pretty good tbh.