Hardy Tropicals UK

Could any one help in identifying the following for me please picture one =4 ribbed cactus
picture 2 -bowl of cacti
picture 3-succulent

thanks

No.1 looks like Euphorbia ingens.
No.2 is Mammillaria but unsure if the cultivar
No.3 is Echeveria, possibly schaviana

Thanks GrevilleAJ .that's a great help