Very nice! You did a good job there, man!
Hey, I have an idea about the background. Two different location for two shinobi from different village, so how about you make two versions of this?
One version is just like what you think (on a grassy field under a large tree and blue sky) and the other, on a rooftop at night in Suna with Shikamaru leaning on a rail or something. Well, that's a suggestion, it's up to you.