Rule of thumb is if you can grab the scratch with your fingernail it is too deep to buff out. what color is your truck.
Even if they dont catch your fingernail they look significant enough that only a professional should tackel it. No way you are gettting that out by hand
Those look like streaks of dirt to me. In fact there isnt enough story for me to see how you even got those odd scuffs. Were those caused by low tree branches or did tree fall on that front end. What's odd that you got no dents and yet whole front looks like 5y/o went at it with steel wire brush.
Wow, those look deep. I too am still confused by what exactly happened. Still though, i feel your pain. I might contact a professional if they are deep.