<h1>Not Bad<h1>
I believe that everyone should learn HTML because it is handy in many situations, and well, you can learn basic HTML in an hour.

You forgot a few things. First, you didn't tell everyone what the alt="" does. This makes a little blurb come up when you hover over an image.
Also, for the lengths and widths, instead of using absolute values, you can also use percentages. i.e: width=50% (note now quotations).
Next, in your code, you just said
This is my example website.
This is all fine and dandy, but it is a little clearer if you put it inside of some <p>'s. So
<p>This is my example website.</p>
In my opinion, HTML is a dirty as hell code and everything that one can do to make it look a little neater should be embraced.

And I guess these were going to be in your next tut, but I think they should go here as well:

<h1>Biggest Banner</h1>
<h2>Next Step Down</h2>
.
.
.
<h6>Smallest Banner</h6>
<hr> /*horizontal rule*/