Paintings are usually 91cm x 91cm [36" x 36"]. 36" x 36" are $850. 36" x 48" are $1200. Delivery is extra if you live outside of Sydney.
I use only professional-grade paints and the canvases are hand-stretched by the lovely master stretcher at Newtown Art Supplies or myself.
You can buy from:
 Directly from me: I can deliver if you are in Sydney
 Winkel Galleries in Clovelly / you pick up from Clovelly and buy through Panna
See Terms and Conditions here
If you want me to photoshop one of the paintings onto one of your walls so you can see what it may look like, throw me and an email with a photo of your wall/dimensions and I'll do it, no obligation :)