Hi - welcome to the GMB

. Kings Lynn Glass was founded in 1967 by Stennett-Willson, and taken over by Wedgwood in 1969, and made pieces such as the Snowflake vase, for example, which has a similar slightly abstract patterned surface, so it might be thought something like your glasses could be from that factory.
Unfortunately, Susan Tobin's book doesn't index such a description, and I can't see anything in the Appendices or the coloured plates, and I've a feeling that hers is the only book available ............... most people seem to collect either the glass fauna or the clear glass material.
Susan Tobin's book seems fairly comprehensive for clear glass and animals, but may lack some of the coloured items ............... the Snowflake vase for example is not included in the book, so it's not impossible these might be from Wedgwood.
Are you able to explain how or why you've made this potential connection between these glasses and Stennett-Willson?