Cut a piece of the boxwood greenery and place it under the grapevine twigs, use pins to hold it in place.
Place three of the five bunches of feathers around the grapevine. You may want to use the scissors and cut off most of the stem and then tuck in the rest in between the pumpkin and the grapevine. Use a hot-glue gun (medium heat) to keep in place.
Cut pieces of the flowers and its greenery then tuck them into the grapevine around the base and glue into place.
Use dried flowers to fill in the rest, make sure some pieces will hang over the edge of the urn.
Repeat the steps on the upper two pumpkins, but don't use as much decoration as you did on the base pumpkin.
We used our tarp not only as a work surface, but we put it in the bottom of the urn to bring the height of the pumpkins up close to the top of the urn. If a tarp doesn't work, try rocks, packing peanuts or old towels. Place the pumpkins in the urn on top of the tarp, allowing it to sink slightly into the middle of the tarp. Make sure none of the tarp shows or the inside edges of the urn.
When everything is in place, fill in any blank spaces with more flowers, feathers or even birds.