Shell Value

[ShellSurfer]

Okay, better pics, and more organized.
Any values would be helpful. I really like the three Cypraea Shells in the upper left corner. The Tiger Cypraea I have had for ever. All the others were purchased at the auction the other day.
Sell as a lot, or trade if there is any value to these is what I want to know. If I end up with the three Cypraea shells I like to the upper left, and sell the rest for a humble sum that's fine to....Thanks for your help, and insight.

https://postimg.cc/image/65ulgrw3b/

https://postimg.cc/image/sujsgey2f/

https://postimg.cc/image/gsoembtzr/

https://postimg.cc/image/6vddtawon/

https://postimg.cc/image/w2o9t027b/

https://postimg.cc/image/6jvxfzqd3/

https://postimg.cc/image/hw8ixwh3b/

https://postimg.cc/image/ilrbacpdj/

https://postimg.cc/image/4fbkf5ot3/

https://postimg.cc/image/8ogahda2v/