"final realisation" is a correct and usable phrase in written English.
You can use it when describing the point at which a person has understood something in full, and reached a conclusion. For example: After much thought and consideration, I finally reached my final realisation: I wanted to change my career path completely.
My final realisation about Paul Smith is that this is what makes him so unique.
This looks to be the final realisation of a vision first birthed in the late 1980s.
Two weeks at the climate summit were a wild ride between cynicism and the final realisation that there were reasons to be optimistic, despite the dysfunctionality of it all.
By the end of the middle eight the anger is joined by a final realisation: "When I look you in the eyes all I see are the lies; been there done that".
Thirdly, capital markets had woken up to the value of mobile telephony and were prepared to award a premium to focused "pure-plays" such as Vodafone.The final realisation was that Vodafone could begin to generate real benefits of scale and scope from its international operations if, but only if, it could turn its ragbag of international assets into a coherent global empire.
His victory in 2012 is the final realisation of great potential transformed by an unimaginable amount of hard work – not just his own training regime, but the collective effort of his team-mates (most notably, second-placed Chris Froome) and the ultra-rigorous, appliance-of-science approach of Brailsford's Team Sky.
In the final poem, "Materials", English and Scots harmonise in the concluding realisation that "a bit o' bruck's / … all we'll leave behind us when we're gone".
Finally, the realisation of SATlotyper is considered.
He deserves his rest, his time with the family and the realisation of his final dream - winning the Ranji Trophy, India's premier domestic tournament, for Hyderabad, his native city.
Let us make peace with the realisation that his final performance might have been that of a man in acute pain trying to beat back demons.
When the MP Stella Creasy received a hideous image of a masked man clutching a knife with the words "I'm gonna be the first thing u see when u wake up", I experienced a lurching realisation that Linah's final experience may have been horribly similar, yet her threats were not splashed across the national news.
