Nina's arm looks a lot better. She is probably a little small but I don't see anyway outside photoshop to fix that apart from re-drawing her larger. If you draw the heads starting with spheres make sure they are close in size. Nina's should be a little smaller than Luca's naturally but they should still be fairly close. Anyway I think it is pretty good as is. Nina just looks a bit more like a child.
The Slan pic is good. I like how your shading looks on the textured paper.
The Slan pic is good. I like how your shading looks on the textured paper.