>>2911940it isnt though, thats what levels and curves are for, correcting the colours and lighting
you will notice most scans have a blueish wash to them before post
compare this edit to your original and you will see the difference, all i did to this one was spend 30 seconds correcting the levels and nothing else, giving you the real colours and a more realistic image compared to what you actual saw that day
the previous one i also added a bit of saturation to bring the colours out a bit more
if you want simple real edits, just youtube correcting levels and curves in photoshop