To answer this question, let me start by saying that the content (text and image) are not important. The context of the text and images doesn't even have to be coherent. In essence, you will use the content to demonstrate the skills you've learned, in particular the items listed the project requirements.

Also, I want to be clear that you do not need to know the skills from the tutorials that we have not learned, You will simply utilize the content, e.g. the objectives on pages 221 (tutorial 4) and 317 (tutorial 5). Then demonstrate the skills learned from the first 3 tutorials using the content.

I suggest copying the content from the first pages of each tutorial to give an idea what to put on your Web pages. For example, take a look at page HTML 1 and the sample assignment below. However, the content it is up to you as long as you use them to meet the project requirements.

For example, on a Web page for Tutorial 2, you can put a list with the main topics of the tutorial (you may copy the list of the objectives from the first page of the tutorial). Then, put some contents to demonstrate the skills the tutorial covers.

Storyboard: Put some text explaining what this is. Feel free to copy the explanation from the textbook. (By the way, you will have an actual storyboard of this project. Don't be confused with the content of the Web page.)
Creating navigation list and linking between documents should have already been taken cared by the navigation bar you have on each page. However, you can add more here.
You may use the CSS for layouts from tutorials. Feel free to modify a bit.
Explain what absolute and relative addressing are. Again, you may copy the explanation from the textbook. Put an example of each to demonstrate the skills since they are project requirements. Do not copy the codes from the textbook nor assignments. You must create your own.
Explain what a base path is. Then, put a base path in your Web page and an example.
Explain what linking to an id is. Then, put an example.
Explain what image map is. Put an image and say something like "We learned how to make an image map using an image like this.", then put an image map using an image file from the student data files folder. Of course, you will need to copy and paste the image file to your Web site folder. So, what do you accomplish from this? You meet the requirements of an image and an image map. You must create your own image map codes - do not copy the codes from the tutorial.
Explain what e-mail link is with an example.
Show examples of hypertext attributes.
Show examples of metadata. Put actual metadata in the codes.

For the tutorials that we have not covered, you simply state that the tutorial covers without actual examples. Use the Web pages for those tutorials to demonstrate the skills from the tutorials that we have covered. Most of those skills are project requirements. Refer to the project requirement list in in the assignment page.

Here is an example:

The index page:

Tutorial 1 page

Tutorial 2 page

Tutorial 3 page

Tutorial 4 page

Tutorial 5 page