I am unable to change my profile pic and it's been 24 hours since I uploaded the pic I wanted. Do you guys see me as a blue skull?

Your browser is caching your old profile picture. Pressing Ctrl+F5 forces your browser to clear the cache and load your new profile picture.

Wow, that's actually really useful. I'll remember Ctrl+F5 in the future. Thank you for the help

Shiken taught me something new today.