There are several tutorials on my website, both 1:144 (shown above), 1:48 and a few general DIYs. You find them all in the DIY projects section. Simply click on DIY projects in the left-hand frame, then on one of the subheadings. (If you don't see a left-hand frame on your screen, please click here first.)
For general hints on tools and supplies for making miniatures, please visit the Resources section as well. In that section you'll also find my mini glossary, covering different kinds of supplies etc, and my page on photographing minis, which some have found to be helpful. My easy to make photo box is included among the general DIY projects in the DIY projects section.