Not very useful
The effects you show here are not very good, and the tutorials aren't good either. Also, you should have a final previw of the sunset/rise. It's kinda hard to navigate as the buttons aren't properly labeled sometimes.
Reviews for "Effects tutorial"
K
^^Good Points^^
Decent layout and backgrounds. It definitely is colorful and not very boring.
^^Needs Improving^^
First off, this tutorial covers three things, and only three things. Two of them, rainbow and sunset, are not hard at all to do and can be done easier than you suggested. Your instructions are really hard to follow, expecially the sunshine one. You seemed to use a lot of slang and unspecific terms.
...
uhhhh... bad. very bad.
the graphice were really bad
Please, don't make tutorials where you teach people to use bad effects.