Penny Kurtz
Penny is an instructional designer and artist with an extensive background in the design and development of interactive multimedia apps, websites, and training for education, entertainment and business; graphic design for television news; drawing and illustration; graphic design for print; photography; silkscreen and offset printing.

You can see more of her work at pkurtz.com

Guy Spataford
Drawing on his background as a 2D/3D animator, filmmaker, musician and composer, Guy develops interactive multimedia, including apps for PC, Mac, iOS and Android.

See some of his earlier work here:
spataford.com.