display picture 1
position: upper left (I don't know who screwed this up, either the maker or the translator, but they're reversed in the ones I've used)
y = 0 (unlike in jumping (also terrible/confusing), where a positive Y value makes them jump down , they got this right. Y is the verticle value )
x = -600 ( X is the horizontal value, and this puts it waaaaay off to the left, far out of the field of vision, so that it's off-screen. Putting off to the right is 700-ish, and the Y co-ordinates vary with image height)

move picture: 1 (if you have more than one picture, you can move them, too. 1 is actually the top layer, 2 the second, etc )
position: upper left (again, I kid you not, they got them backwards)
Y = 0
X = 150 (no joke. 150 is the co-ordinates for the middle/center of the screen. Not 0,0, because that would make sense)

Then put a text box. Yay captions!
...then "erase picture 1" . Unless you want to use my concept art viewer event . Yay image scrolling!