Is my og kush ready for harvest

I think it is ready just would like to know if it is ready

Nope. Let her go a little longer. still lots of white pistils in your 3rd pic.

If no signs of mold are present then yeah I would also let them go longer. In my area sometimes the dampness gets to our buds fairly fast dictating an early harvest, but you seem to be doing well.

I grew out some OG last year from MS.NL,it finished mid october.Nice weed but a bit hard to trim