Man I would go for the black pastel x black pastel, super blacks are awesome and I have never actually seen a duckbilled animal in person.... that being said... I have a few projects coming together....
(after typing this realized I put the females first so maybe that helps understand the pairings better)
Spider x leopard het red (hopefully he will be ready )
Mojo x leopard het red (again hope he is ready)
Black pastel x Pastave ghost
Pastel x specter
spider x specter and possibly pastave ghost
and a couple of normal females that will breed what ever I have availible for them......

DH blizzard sd retic x dh blizzard sd retic hoping to hit the double recessive this year!

I also have a few litters of boas I am expecting
Hoping to put what I belive to be a super hypo jungle to a couple normal girls this year