Specialised Ken Burns Effects

Hi, I have had a frustrating 6 days combing all web builders, wix, weebly, squarespace, wordpress, chatgpt, coding,etc. looking for high quality Ken Burns effects.  And then to great joy, I found you! This feature is a game changer, but there is no customisation. This feature seems incredibly important to anyone hoping to bring a bit of extra dynamism to still photography.  I am going to try to code it myself in my site, but it would be incredible if there was a bit of extra customisation with like with the bezier curve. (Ideally a Ken Burns effect is a bit random, and not predictable). eg  Starting from the left, then swooping down for first image. Then the right, zooming left for second, and on and on. Human and random, as opposed to predictable.   I think the code would need to be about timing and position.  
transition-timing-function: cubic-bezier(0.1, 0.7, 1.0, 0.1);