Mallow Square

A picture of a crochet blanket with this square design can be found on Pinterest but the link goes to a sold out blanket on a homewares store called Malvamood in Uruguay. I haven't been able to source any proper pattern for the blanket so I sat down and nutted it out with the help of @cypresstextiles at the end. If anyone does know the source of the original pattern please let me know.

I am naming the square the Mallow Square, as Malva in Spanish translates to Mallow.

(Written in US terms)
Pattern has been tested but as always feel free to let me know if there are any mistakes.

Terms:
st - stitch
ss - slip stitch
sc - single crochet
hdc - half double crochet
dc - double crochet
tr - treble (triple) crochet
dtr - double treble (triple) crochet

Materials
- 8ply yarn and 4mm hook (but can be used with other size yarn and hooks).

With color A
Start with your preferred ch4 slip stitch, or magic loop to make a circle.
R1 - ch3, 11dc into circle, ss into top of beginning ch3. (12dc).
R2 - ch3, 1dc in same st as ch3, *ch1, 2dc in next st**. Repeat from * to ** to end of round. ss into top of beginning ch3. (24dc).
R3 - ss across into ch1 space, ch6, *1dc into next ch1 space, ch3**. Repeat from * to ** to end of round. ss into 3rd chain of beginning ch6.
R4 - ss into ch3 space, ch3, 3dc into that space, ch1, *4dc in next ch3 space, ch1**. Repeat from * to ** to end of round. ss into top of beginning ch3.
R5 - ch3, 1dc in next two st, 2dc in next st, *ch1, 1dc in next three st, 2dc in next st.** Repeat from * to ** to end of round. ss into top of beginning ch3.
R6 - ch3, 1dc in next three st, 2dc in next st, *ch1, 1dc in next four st, 2dc in next st.** Repeat from * to ** to end of round. ss into top of beginning ch3.
R7 - ch3, 1dc in next two st, ch1, 1dc in next three st, *ch1, 1dc in next three st, ch1, 1dc in next three st.** Repeat from * to ** to end of round. ss into top of beginning ch3. Break off yarn.
With color B
R8 - join new color in any ch1 space with 1sc, *ch3, 1sc in next ch1 space.** Repeat from * to ** to end of round. ss into beginning sc.
R9 - ss in to ch3 space, (ch4, 1tr, 2dtr, ch2, 2dtr, 2tr) into that ch3 space (beginning corner made), *4dc in next ch3 space, 4hdc in next ch3 space, 4sc in next ch3 space, 4hdc in next ch3 space, 4dc in next ch3 space, (2tr, 2dtr, ch2, 2dtr, 2tr) in next ch3 space (normal corner made).** Repeat from * to ** to end of round. ss into top of beginning ch4.
R10 - ch2, 1hdc in next three st, *(2hdc, ch2, 2hdc) in ch2 space (corner made), 1hdc in next 28 st.** Repeat from * to ** to end of round. ss into top of beginning ch2.