Sketch Book Challenges

Catching up with my sketch book challenges again.......the first one is for august, the prompt was "shelter". a quick sketch of two umbrellas in white pastel & black crayon over an old blue & black acrylic painting on  textured  watercolour paper. 
 the title for september is "patterns". these pages are acrylic on a collage of used window envelopes,used office papers stamped with round plastic lids to make circles, crayon & pitt pen drawing,  stenciled with plastic packaging (the little yellow rectangular  shapes) & old stick on dots that have lost their sticky stuff, stuck on with impasto gel & then glued into my sketch book. i think re- using all of these materials has worked well for this exercise, a lot of paper comes into the office, i just save a bit of it from going into the recycle bin by using it in art work. (raylee).