how to create pockets?

https://preview.redd.it/1xfa1q8pk2mh1.png?width=1912&format=png&auto=webp&s=7d9b9957fe88700b974e611955005a2ce6b3745d

https://preview.redd.it/g1j2wfask2mh1.png?width=1917&format=png&auto=webp&s=68c056e27f1cb63d345802df0678d3cebd925c2a

https://preview.redd.it/vf03yrztk2mh1.png?width=1917&format=png&auto=webp&s=1ae9cf673cc6fcc5f5c739ebeb0f720f660396e5

https://preview.redd.it/95xl60gvk2mh1.png?width=1916&format=png&auto=webp&s=4d2a6e445faf4abcb1f553afc7177d174ed90c5b

how do i create pockets for my hoodie like in this refrence image. i have sculpted the whole thing but don't know how to add pockets to it

https://preview.redd.it/efog6tn1l2mh1.jpg?width=356&format=pjpg&auto=webp&s=54f8660ff69128f75a65db4fa11e740430a8d13f