Who made these vases please?

I loved the glaze & decoration on this vase

I thought the mark was a Y, but it doesn't look to flow right. Any ideas?

Another attractive glaze, but it was the mark that intrigued me

I have no idea what the number represents, but the CP is done in a similar hand to the WP of Waimea Pottery

Hi .. still trawling ... You may have an ID for this already but suspect it could be Craft Potters Club signature. Memories from my Club days recall that at various times, any unclaimed pots hanging round the shed were finished off by anyone who volunteered. Members also sometimes made pots specifically for CP to sell at Club Open Days and proceeds of sales went into club funds. Unclaimed bisque pots were also glazed/decorated by club members - probably ID'd by the initials CP in iron oxide on the base.

I don't know his work, but that CP could be the mark of John Sepie who marked his work CP.