Only for you Dear Watson! I pulled boxes of patterns to find the name of the quilt design. But I found the corresponding tuts for you finally!
https://www.youtube.com/watch?v=w1T7d0uk9Ro
There are different ones for the blocks to this quilt but methods are similar.
Be careful of filling in too much fill with thread. It can pull the fabric too much. You may want to use an embroidery wash-away topping for any small areas that might pucker or tear.
PS: You may want to try the variegated threads for add dimension.