What made you choose to focus on Open, rather then Mid/High?
Because I personally play in Open so I have a lot of interest in the the other teams that play in the league and also cause there isn't really anyone else who covers the tier.
Also I feel like newer people to the scene coming from casual would very much like to see coverage of the tier they themselves play in.
GazNo idea if you're aiming for professionality, but if you do you should watch your vocabulary and expressions. Stuff like "absolutely rolled", "[...] who used 8 players throughout the season so I won't be listing a roster for them" and using terms like offclassing should be avoided at all costs because they sound really bad and personally I don't enjoy reading a coverage in a way like that, especially since you vary between writing in a fitting linguistic tone and colloquial (hope thats the right term) expressions. You pretty much write stuff down in a fitting manner and in the next moment you formulate words comparable to someone speaking with a friend.
Yeah I'm still not quite sure what if I want to write it more professionally or not, I kinda just wrote it in a way that felt natural. I'll probably figure out the style I want to write in over the course of the season as I write more stuff.
Though I'm also not quite sure if 100% professional is the way people want to see these written, people might like the sometimes informal vocabulary cause it feels more casual, which I guess might be fitting since it's Open.