Might be the video angles, but that brick line looks wavy anyway, so going to be an awful wall anyway.
Probaably should have mentioned I'm just goung few bricks high and plonking wooden structure on top.
...but yeah that front wall I did first and had the lumpiest concrete surface...is that wonky... but i just need to to get above ground to support the wooden stucture.
The water level is a must I reckon I 've got a massive spirit level but 'pretty' level over the course of a 9M clearly isn't good enough At least I'm learning something...probably to stick to woodwork