Where are you watching on?TV or a phone?My experience,tv quality is way better(UHD/4K).Issue with this vlog is the inversion which I think with time she will figure out its settings
Were you filming with your front camera? Video is reversed. I don't know if the iPhone has this feature but on my Samsung phone even if you film or take photos with front cam and it's reversed, you can edit it to turn it the right way. You can research and see if it's similar on the iPhone