Stitch someone else’s video

I want to stitch this 15-second dance clip and add a 10-second follow-up showing the final move from my angle. Trim the original to the first 6 seconds, append my footage, add a caption 'Try this variation' and use upbeat royalty-free audio. Keep attributions visible.

Before I stitch someone else's video, make it easy for viewers to understand my addition: highlight the clearest point to trim from the original, suggest two ways my follow-up can add value (demonstration or commentary), propose a caption that credits the original creator and invites duet replies, and flag any content-safety issues.

I trimmed and plan to stitch Lena's clip but worry my follow-up could misrepresent her choreography. Should I message Lena for approval first, clearly label my stitch as 'my take' in the caption, or avoid posting? Which preserves creator trust without killing timing for relevance?

My stitches sometimes cause complaints or perform poorly. Where am I likely failing — choice of originals, framing of my addition, or attribution — and what single habit change will reduce backlash and improve engagement across the next ten stitches?