Thanks for the encouragement, everyone! Glad you liked it.
Australian Cypress isn't like the Northern Hemisphere stuff, it's more like Yew in terms of crushibility, flexibility, etc. You wouldn't want to try it unbacked though, the grain would be a nightmare to deal with.
The bow is 70" total, 68" ntn, 14" centre stiff section/handle.
1.5" wide at the fades tapering to 1.25" at 12" from nocks where it then tapers down to 0.5" at the nocks.
I started the thickness at 5/8" at the fades and 1/2" at the nocks but I ended up tillering another 1/8" or so out of it toward the tips, I reckon. I'm really surprised how much had to be taken off and it's still bending too much at the fades! You can see in the picture of the nocks how it bulges a bit at the very tip, which shows how much extra I took off the limb in tillering.
Has taken about 3/4" set after a hundred or so arrows and a few days rest. Not bad, all told. Going to try a 64" recurve with it next but got some surgery coming up so might be a while before I'm back in the shed.