Looping 4-Slide Author Day Deck

I’m preparing an Authors Day event and need a compact PowerPoint that plays on an endless loop. The deck is only four slides long, yet each one has to feel alive—bright colours, playful layouts, unexpected transitions; overall a fun, slightly chaotic vibe rather than a polished corporate look... (Budget: £10 - £20 GBP, Jobs: Animation, Branding, Creative Design, Digital Art, Graphic Design, Powerpoint, Typography, Video Editing, Visual Design)