Clip open the first loop on your loop yarn to create a tail. Tie the tail around the inside wire of the wreath form.
Wrap the loop yarn around the wreath form, placing the entire ball of yarn through the middle of the wreath each time you wrap.
Keep wrapping the yarn around the wreath form, keeping each loop tight against the one before it. As you do so, you will completely cover up the wreath form with the loop yarn.
When the wreath is totally covered, tie off the yarn and clip any excess. Flip it over to the back, and push the loops on the back through to the front. This will make the wreath look more full.
Use hot glue to secure loop yarn to the bottom point of the heart if needed. Fluff up the loops in the front.
If you'd like to add a wood embellishment, you can hot glue it directly to the wreath. Or you can hot glue floral wire to the back of the embellishment, then use the wire to secure it to the wreath (which will allow you to reposition or swap embellishments if desired).
Loop twine or ribbon through the wreath form to hang if desired.