Hughie,
I like the work although the images are a little on the large side. I downloaded the exterior shot so I could see it better.
I think you've carved the coves around the bowl as they are irregular in their position (move up & down slightly) so cannot have been turned when making the bowl.
As for making your own DO, not always so easy here in the UK. Mr Elf & Mr Safety do their best to stop us buying raw materials or anything they think is dangerous.
I need some vinyl glue which I used to buy very easily from the likes of Woolworths, but because it contains a substance called MEK (Methyl ethyl ketone, e.g. the glue that can sniffed) you cannot buy it anywhere.