A couple of critiques (constructive critisizm, not an attack, take it or leave it)
Caribe:
Pictures 1+2 have too little contrast to be real life photos, they are great for a dream shot but not really RL
Picture 2: The clouds shadows are a little too dark, if the shadow is that dark that means that the cloud should be really dense and dark like a raincloud but it looks fairly white to me. Besides, the big black splotch on the ground doesn't match the clouds, and it takes away from the picture.
Dopamino: The mountains look like they were pasted onto a background picture. esp the lower middle part, the line there is choppy and very sharp, a little blur in photoshop might be able to fix that.
Props to both of you though, you both have great talent in this area (where I have none btw) and I look forward to more stuff like this.