Bulbophyllum Macrobulbon Section

I have always like the large Bulbophyllums and on a few recent trips managed to find some of the rarer ones to add to the garden. I found a few online sellers after a long search and got the following Bulbophyllum Agastor ,  Bulbophyllum Macrobulbum, and very nice specimens of Bulbophyllum Spiesii (Vanuatu)  and Orthosepalum.  Missing the Bulbophyllum Cruentum which is cool growing and a real challenge to grow here in the tropic.