I too love this color on you! I always thought these soft colors would wash blondes out but they actually look good. There is also something so sophisticated about soft, tonal dressing like this. At least I think so.
I have been wanting to tell you that you have the perfect figure to wear waist-surrendering, oversized tops. Don't fear them. As long as you have something fitted on (like the skirt or skinnies), and show some skin (forearms, collar bones etc.) to both balance and soften the volume. I think they will add that edge you are looking for in your style.
As for H&M knits, I purchased two unfitted muscle tees there this summer made from 100% viscose. They have washed beautifully, and compare well to ones from the Gap ($7.95 vs. $42) or even Vince ($100 plus).