Threaded/nested mobile comment section

I'm building a mobile application that is supposed to encourage conversation, and one feature is being able to comment on posts, as well as comment on comments.. essentially a threaded comment system.

This can get very messy very quickly, especially on mobile, so I'd be curious to know what you guys think of my solution that I currently developed for my app.

So the way I have it is something like this:

^{download bmml source – Wireframes created with Balsamiq Mockups}

So essentially, each comment has a replies button, and when you click on it it takes you to a new screen where the comment is the "main text" and it has x amount of comments below.. essentially offering infinite nested/threaded comments.

Is this a good UX implementation? I think it works.. perhaps not brilliantly, but I don't know if you can make a brilliant implementation of threaded comments for mobile.

I think one potential addition I could do to make it better is that in the second screen maybe show the original post as well, so users don't forget/lose the context of the post.

What do you guys think? Any feedback would be great! Thank you.