From the outset, I'd like to emphasize that I have only watched episode 1 of season 1 of 'Peaky Blinders'. And you are absolutely right; nobody in their right mind should attempt - or be allowed - to review a series after just one single episode.
It's indecent and dishonest, but voilà! This is my blog and I review what I want!
To compensate, the review in question is mercifully short :
'Goodfellas' in post-war Birmingham.
Not a thing in here (in the pilot, that is!) that you haven't already seen before, unless perhaps the setting.
Well-made and all, but...