The photo is a little fuzzy & gives very little clue as to what engine the head is off
It has been my experience that this type of damage is typical of a cam belt failure at some point in it's life
Sometimes when a cam belt fails, you'll be lucky & only bend a few valves .... Other times it will destroy some casting around the guides and FUBAR some of the piston crowns !!??
At the end of the day, unless it is somthing realy exotic or rare, it'll be way more ecconomical to replace the head .