Simon Says Stamp and show challenge for this week, as some of the techniques used were demonstrated by Wendi Vecchi, although I don't own any of her stuff so I hope that this counts. This also fits with the sew many cards challenge to use the colours burnt orange, yellow and brown, all of which can be seen throughout this piece.
Pixie Dust 'Anything but a card', and crafty creations 'crafty decoration' (this is a wall hanging).
Stampavie's 'autumn', Fussy and Fancy 'fall' and Paper play and stampin' for the weekend 'autumnal colours'.
DYSU 'brown', CCCB '3D' and Delightful challenges 'make it dimensional' challenges.
Flourishes Timeless Tuesday challenge and the butterflies (there are 2 of them), mean that it also fits with the Flutterby Wednesdays 'open' challenge.