It's a beautiful quilt and I don't think it has to be done by an "advanced stitcher". In the 25+ years that I have been quilting I've tackled patterns and quilts that might have been advanced, but I did them anyway because no one was there to tell me I couldn't. It would be a great way to stretch your skills and if you follow the pattern, you should be fine. There are no rules in quilting, just tell yourself you can do it and go for it girl. I know you will be glad that you did. I've done some of my best work when I listened to my "quilting" heart and just did it. The first quilt that I machine quilted was king size, and I really learned a lot. No one was there to tell me I couldn't do it so I did it. You can do any thing if you tell yourself you can and then do it. I'll be looking forward to your picture of the finished quilt. It is a beautiful pattern.