I just tried it out... and it worked!
I like how the colors of the wool (80% wool, 20% Polyamid) complement the patterns and the colors of the fabrics...
... and how the "firm" fabric pieces stabilize the "soft" knitted pieces.
It's all made by hand, and the quilting process was surprisingly easy.
However, one effect of implementing knitted parts is that the quilting stitches don't come out clearly in these parts, but that's fine I think since the color effect is meant to be the eye-candy here.
The quilt's top and back (thin corduroy) feel soft and warm, and I used a light, fluffy pure cotton fleece for the filling. The dimensions (1,40 x 1,50 m, 55" x 59") allow for multiple ways of using this quilt, it can be hung up or used as a warm cover or a cozy blanket to play on, depending on who will be the owner of the piece. This quilt is already sold so I know that it will be used as a warm blanket for a toddler to play upon. That's perfectly good, since the overall design is a playful one and all materials are pre-washed and a washing is easily and quickly done.
I had been happy to do this work and I wish the future little owner many happy cozy moments with this quilt.