Place lighter mediums such as watercolor paints or acrylic paints on the canvas or board first before moving to heavier and thicker mediums such as wax and oil paints. Create a rough draft by drawing an image in pencil on the support before laying down your first layer of the work and then continuing with each media. Allow each layer to dry before continuing to the next. Be careful not to make the piece too heavy if you want to hang it on a wall.
Using both photographs and photo transfers allows you to place text and images on your canvas. Both add an element to your piece that is more mechanical and defined, for images and text are not humanly created but transferred to the artwork. Place more layers on top of these, either light or heavy, once the transfers and glue have dried.
Using knives and other items to create texture can add interesting effects to your artwork. Modeling compound can also be used to create striking visual elements in a piece. Large brushes, or those with rough bristles, can accentuate brushstrokes. Knife tips can be used to create a dented surface.
Found objects -- such as strings, feathers or other light pieces discovered in your everyday life -- can bring an intriguing dimension to your work. These objects can be used on the top of your piece or underneath it to add substance and texture. They will help add significance to your artwork.