Create animated end screens for social media videos

I’m looking for a motion designer to create a series of animated end screens to use at the end of social media videos for my client, Royal Voluntary Service.

I have a very rough video I've put together as a guide – this includes the logo and general layout. The logo must appear exactly as shown in the rough version, but you're welcome to improve the transitions, animation, and overall quality of the other elements (e.g. website, messaging). I can also provide a few existing transition videos as inspiration.

Requirements:
Design and animate end screens for social media videos
Use the exact logo animation/appearance from the rough video provided
Improve transitions and layout (excluding the logo)
Create versions in six different dimensions to suit various platforms (Facebook, Instagram, X/Twitter, TikTok, LinkedIn, YouTube) — ensuring all are optimised for platform-specific safe zones
Deliver final files in appropriate video formats (MP4 or MOV) and source files (After Effects or equivalent, if possible)
To apply:
Please provide your price for the full job
Share a portfolio with relevant examples, ideally including social media video content or animated end screens
This is a professional project on behalf of a national charity, so quality and attention to brand are important. Looking to start as soon as possible.

Link to rough video: https://www.dropbox.com/scl/fi/x9vcv2gaxg346upb5h8s4/CS4688_VideoEndScreens_InstagramReel_v2.m4v?rlkey=2q0ptegz5df8ov51x3wlzzzs8&st=v1to1hrw&dl=0