I think your updates are fine. They're actually better than what I've seen around from various people. It's up to you what else you add to them, really.
When I started doing challenges, my updates were super long and quite tedious, having stats and everything else in them. But I eventually decided to go for simple updates noting the important stuff I did in my journey and posting my teams with movesets and natures and held items.
There's no " convention" for updates, really. It's all up to each personá desire and imagination.
Hope that helped o.o