this has a lot less to do with rendering quality available, (features) and much more with the skill level and polish put into the final product by the artists.

this has a lot less to do with rendering quality available, (features) and much more with the skill level and polish put into the final product by the artists. (the TV movie, likely had orders of magnitude less time to concept, model, rig, animate, render and composite in comparison to the peter rabbit movie. and this clearly shows when you google the budget $50 m for peter the rabbit for a 90 minute movie vs 25 million in 2018 for watership down for an entire miniseries.