I love the second purple one! I would say try and make the shading look a bit lighter and more natural.
The first one is awesome too, but I’d reccomend going with colder lighting to reflect the blue background. Don’t make it blend in too much as you still want to have it eye popping.
Haha, I actually just noticed that he had used the same pose. Extra points for having one pose look great in two completely different themes or minus points for being lazy?