The lullaby reminds me of LIszt's Lebestraum -only less imaginative. I like it though. The B7 in measure 15 doesn't quite work and seems to sever the environmental that preceded it drastically -I'd look for a different progression here. The material at measure 17 also is a bit departed from the first half. A little too much, in my opinion. I'd look for a way to tie the two sections together (mind you, this could also be due to the transitory progression I mentioned at measure 15). When you change textures like this, it's always a good idea to foreshadow the change to prepare.
In Viaje, I noticed you love the type of texture created by the opening bars. I've seen this in a few of your works. So, that said, let's see where you take this. Here, you took it where I figured you would -give me something new. That said, I think you missed an awesome opportunity to explore the tonal landscape in measures 21-30. Formalistically, I think this one is much more cohesive then the lullaby.
Nice works!