Those are nice photos. Instagram sadly haven't fixed the quality issues when posting from the One. GS4 users are complaining as well. Disabling "Use advanced processing" in the settings doesn't fix it, they will be shown with some blur but a little better than with it enabled.
I've taken some good looking pics with my One but they end up looking blurry or over sharpened (like some of your pics) when I upload them. I only hope they fix it soon.