Keep in mind that we normally cut out each person individually so while those pictures may be usable they may not have the same feel as they currently have. I'd also be concerned on how the graphic would look with one of the brothers facing to the side. I don't know which is which so not sure if that is unavoidable even if we take the brothers from different pics (looking at them from my phone also doesn't help me judge that
)
You should be able to search by colour on the design seeds website & find some nice blues that you might like