In order to achieve a good finish you need to cover the cake with ganache first, allow it to set and ensure your fondant is rolled out fairly thin. Once you've done what's shown on the video, you will need to do further smoothing.
by Cooking A Dream
by B4Pbakup
by Debbie Shore
by Unusual Cakes For You
by Shreya's A to Z Craft
by Antique Pencil
by La Magia del Crochet