You must use copier or laser ready clear sheets, able to withstand heat for the embossing process. If you have trouble with the powder sticking to the clear sheet, wipe it with a fabric softener sheet to reduce static. Emboss the image with clear powder. Color in the design on the front side with Marvy or LePlume markers. Use clear embossing powder and sprinkle over the entire design, covering all areas you have colored in.
Heat emboss the entire design from beneath to give it a glassy look.
Try stamping a stained glass image on dark paper. Use clear embossing ink to stamp, and then heat emboss with white or metallic powder. To color, use chalk. Apply chalk heavily, sponging on repeatedly. The effect is very elegant, giving a texture almost like suede.