VAT on UK art sales while living overseas

I live in Australia, originally from the UK. I have some artwork I would like to sell through a UK gallery. The artwork is in the UK with a family member so would not need to be imported. The gallery charges a commission and VAT on sales. Do I need to register for VAT? Is there anything the gallery owner needs to do?

Hi,
If you are not established in the UK and are selling goods within the UK then you will be making taxable supplies and there would be a requirement to register for VAT upon the first sale made.
Please see the guidelines below:
9. Non-established taxable persons — basic information.
Thank you.