Of course, how stupid that I didn't see that... Anyway, you start the function onLevelHundred when the resource gets started, this is for every client. You could check client-side which data the client has, to check or it needs to draw the picture or not. (Not sure or that will work) You can also send some stuff with the trigger to the client, like the data and then check which picture you have to draw with that data.
(Sorry if it didn't make sense, I'm extremely tired )