Sound Design + Music for Short 3D Animated Product Videos (Kids' Toy Brand, Ongoing)

We work with a US toy brand that makes buildable paper playsets for kids ages 3 to 9. We have a set of short 3D-animated videos showing how each playset is built and played with. The animation is finished and locked, and it looks great. The problem is the videos have no audio at all. We need someone to add music and sound effects. FIRST ROUND SCOPE - 7 finished videos, 18 to 37 seconds each, roughly 3.5 minutes of total runtime - Source files are 1920x1080, 50 fps, H.264 MP4, delivered to you through Dropbox - Each video needs one music bed plus sound effects that track the on-screen action: paper pieces folding, tabs locking into slots, parts sliding together, characters moving, small playful accents on the reveal moments - Mix and deliver back as MP4 at source quality with the new stereo audio, plus a separate stereo WAV of the mix - Target around -14 LUFS integrated with true peak at or under -1 dBTP. These run on Amazon listings, Amazon video ads, the brand's own site, and social. REQUIREMENTS - All music and sound effects must be licensed for commercial use including paid advertising, worldwide, in perpetuity, with no attribution requirement. Send the license documentation along with the delivery. We cannot use anything marked "free for personal use," and we cannot use commercial copyrighted tracks. - The sound effects are the part we actually care about. They need to hit the motion on screen, not just get sprinkled over the top. Generic music laid on a timeline is not what we are hiring for. - Style: bright, warm, playful, acoustic-leaning, appropriate for young kids and their parents. Not frantic, not chiptune, not corporate stock music. HOW WE WANT TO RUN IT 1. One paid test video first. We pick which one. The budget on this post is for that single video. 2. If we like it, the other 6 go out right away. 3. The brand releases new playsets regularly, so we expect this to be ongoing work. PLEASE INCLUDE IN YOUR PROPOSAL - Links to 2 or 3 examples of sound design you have done for animation or product video, where you did the sound effects and not only the music - Your price for the single test video, and your per-video price for a batch of 6 - Turnaround for one video, and for six - Where you license your music and sound effects from, and whether you can provide written license documentation - What you mix in, and confirmation you can deliver both a finished MP4 and a separate WAV We read every proposal. Please skip the generic template.