Remix it and just replace the [ADD YOUR IMAGE HERE] with the images you have. The colored outlines mean the images you'll have to put. Also remove the (pick random sound) thingy and replace the audio with the one you have or the ones from this project.
To make your own sound you must need Vegas Pro and the .veg file, then export it as audio. WARNING: Some sounds can be loud, so please turn down your speakers or headphones' volume. The project can also not sync correctly with the sound depending on the device you're using.