This is an overlay mosaic pattern worked in US terminology.
The pattern, Christmas Medley, was released on December 10th, 2024 as the final pattern for the year.
The pattern comes in 1 large panel with the choice of two variations, one with a snowflake in the middle and one without.
This pattern is worked row by row and can be repeated to your desired size.
You will need to know the basics of mosaic crochet but there are tons of videos for beginners on YouTube.
Mosaic crochet is a dense crochet, no “holes” so is ideal for blankets, rugs, runners, cushions, etc.
You can use a variegated/print/cake yarn and allow the yarn to change colour on its own or you can use two separate colours to create a contrast in the pattern.