tutorial help?

I found a really great tutorial but the result came out different.  it's much whiter than it's supposed to be.  is it possible that a step is missing?

I won't post the link because you have to be a member to be able to see the tutorial so I'll just copy everything:

to this >

30 %screen curver layer


selective white


+100
-82
-100
0


white
+100
0
-100
0



red

-100
0
+93

made by designaa