I think you should probably cut out each necessary picture, put all most of the text in the post, and insert the pictures wherever they're needed. This will make the tutorial much easier to correct (because there are definitely grammatical errors), and it will make it easier on the moderators, when/if they decide to change some formatting or phrasing.
And, as -Kobas- said, there needs to be some sort of preamble, and ideally some sort of closing segment.