First I will say I think these are absolutely adorable, and that these are really well done!!!
Vision; well obviously they look quiet tasty Their clothe designs are simple yet have individual characteristics. To improve the vision more shading on the clothes and hair would really complete it and make them all the more cuter <3
Originality; I gave originality three stars mainly because I have seen many desert adoptables like this before on DA (probably because their cute) but it would be really neat if their was a little bit more of variety for instance an adoptable set of transportation chibis.
Technique; your technique is adorable with their huge, glowing, bright eyes and mouth expressions. Again though it could be improved with a little more shading in the clothes and hair (not just highlights)
Impact; ADORABLE ADOPTABLES that's what comes to my head and others I bet when I look at this and that's the impact it ha on me!
Over all keep up the cute heartwarming adoptables!