For the most part, it looks good. I'll make 2 suggestions.
You appear to have deleted the Biography header. I would make sure that stays in the Biography section (just add at the top of that == Biography ==). And I would also populate it with "something". Even a basic start such as "Son of John Brown and Ellen Philpot, and husband of Elsie May Moore" is at least a good initial placeholder. If you want to get more in there, but don't want to go wild, you can use a narrative of your initial basic facts. Like, "He was born on 1 May 1904 in Nunhead, London, England to John Brown and Ellen Philpot. He married Elsie May Moore on 24 August 1930 in North Peckham, London, England. They had 2 children. He died on 12 March 1969 in Wexham, Buckinghamshire, England."
The second suggestion is to provide links to the source information you cite. Putting enough information to find your sources is a great start, but adding a link to the actual information is so much better. For GRO information you should be able to link to the GRO website for those links. With his birthdate of 1904, you should also be able to provide a link to the 1911 Census. Conceivably, you might have a link to his grave information through something like Find A Grave or Billion Graves. Sources can be a never-ending search, so don't be discouraged that the journey has just begun.
But these are just suggestions. Other than the missing header, I see nothing wrong with how this looks. Just ways to improve.
