Two Flashbacks in a Horror Clip

I'm in need of a skilled video editor who can incorporate two flashbacks into a short horror clip that I'm planning to use in my horror film. The flashbacks should look like a flashback and the viewer should automatically be able to recognize that just from watching the clip. Maybe a sound effect can be added. Thank you for your time.

Here's the video clip.

https://vimeo.com/1019670763?share=copy
Password: BobFlashback