Welcome to AH Johan! Looking forward to your participation...
Thanks for the Report those are some fine trophies that the two of you took, Congrats!
I'm with Steve. Euphorbia Your pick after that: 1. Confinalis 2. Cooperi 3. Evansii
Looks like Euphorbia to me but impossible to say if it Ingens or other from that pic. I have a buddy who's a real fundi on succulents so will ask him to check this thread out.