I decided to share this little tutorial with you guys because it was something I really wanted to do to customize my blog even further, but I could not find any tutorials of how to do it online. So, now that I've got it figured out, I'll try my best to explain to you guys how I did it!
There are three steps you need to take before we start. First, you need to have created pages on your blog already. You can do that on your blogs main control panel, in the same place where you'll find the Layout tab, there are other tabs, including the Pages one. You will need the link to your already created Pages for this. Second, you need to create the images your are going to use. I used Photoshop, but any image editor that you usually use is fine! Third, upload the images you created to a free image host, I use Photobucket! You will need the images URL for this as well.
Excuse these images, my Blogger is in Portuguese, but I'm sure it'll be easy to find things in English!
Here's the code you need to add: <div align="center"><a href="YOUR PAGE1 URL"><img src="YOUR IMAGE URL"></a><a href="YOUR PAGE2 URL"><img src="YOUR IMAGE URL"></a><a href="YOUR PAGE3 URL"><img src="YOUR IMAGE URL"></a></div>
Hope this helps, guys! Any other questions or request, just leave them in the comments below! x