You guys had that blizzard too? Lol, we had 16 inches.
To begin, going from a photo to the traditional, cartoon-y Armatar isn't easy. I don't feel like I've done a good job myself, to be honest. They still look a lot like photos, which is something I don't think will work very well as an Armatar.
The snow ones are kind of boring. We've all seen snow, and there isn't much detail to make it into anything eye-catching or attention-grabbing. It's just white, with a line or two here of mini-snow dunes.
The sun picture had too little IOS and too wide of an aperture (omg Sal knows some camera terms), which resulted in an overly dark, little contrasted picture where the serious use of depth-of-field blended everything together. It would take a lot of time to go in and reconstruct everything to make it Armatar-worthy.
The frontyard ones don't look too bad at all - the tree might be an issue because some of the branches are blurred together. If you could, maybe use the 3rd one and just get rid of the smaller branches? I feel like it would look very nice. If you use GIMP or Photoshop, it can be done fairly easy with a flick of the Clone Stamp tool. If you don't use GIMP or Photoshop, you'll probably ruin into some problems with making it look like the erased branches didn't just vanish. You need to keep it looking natural.
The sideyard one is definitely worth looking at. However, if you could get the more of the house into the picture (maybe by standing farther away), it would be a nice, contemporary "house in the countryside" kind of ordeal. Right now you don't get much with the house, and the trees aren't too exciting by themselves. Trees and houses compliment each other phenomenally.
Branch 4 is about the only branch one that's really interesting. The others are kind of bland, general branches. Branch 4 gives the viewer an observation from the ground up, but it isn't so extreme that it looks like a normal view. It's almost like a combination of ground view and bird's eye view, which is really nice. You might want to up the contrast a bit when editing it because you might lose a lot of detail if you make it into a cartoon-ish picture. Otherwise, the branches and sky contrast each other nicely.