Here are some people I think you should check out:

Arts organisations:
Art in the Park community and environmental arts organisation
Creative Action Network community arts organisation/ The Sharrow Lantern Carnival
Encounters arts organisation
Grow Sheffield urban growing association
Red Nile Projects collaborative community arts projects in the public realm
Yorkshire Artspace art studio organisation

Ania Bas collaborative artist
Bob Levine artist
Catherine M. Gray textiles and print designer and illustrator
Karen Logan visual artist and educator
Lyn Carruthers textiles and mixed media artist
Michelle Wood conceptual ceramics
Roger Newton fellow crocheter
Sarah Smizz live illustrator and collaborator

Alex Quant photographer
Glen Stoker photographer