I've been working exclusively on the OCR proof-of-concept as the capability means lots of exciting possibilities and a more 'authentic' AI overall. As you can see above the code is performing quite nicely - it hasn't correctly identified all of the numbers, but I'm calling this 'feasibility study' a success as I'm confident that with more time, much better results will be possible.
From now on I hope to have a few project areas on the go at any one time, so there should be more regular updates in future.