It is completely normal to be scared by a real snake when you see one. I am sure most people will panic if a snake is coming out of nowhere right in front of them. It is a normal behavior because most people can't tell if a snake is venomous or not.
I will probably jump if there is suddenly a snake near me, and most likely I won't even touch it even if it isn't venomous unless it is pet snake. I remember the first time I touched a snake was a tiny pet snake brought to school by a classmate. I thought it was cute and soft to touch. There is nothing to be afraid of since I knew it was harmless after multiple kids had touched it. Yeah, I held it for a minute in my hand. So soft.
On the other hand, it is nonsense to be scared of a picture of a snake, or even a snake in secured captivity. What is there to be scared of? They can't hurt you even if they want to. People who can't stand the picture of a snake might have some unusual issues.