a journey of a drop of water

These are my latest artwork for one of my subjects. This is a set of postcard design, so the four cards can be joined together as a set, but can be also viewed separately. The theme is "A journey of a water drop", so these are cloud fairy, wind fairy, rain fairy and a little boy, who is the receiver of the water drop. They are all done by Photoshop and my lovely Wacom pen tablet. It takes me around 60 hours to finish all of them and I'm still kinda stuck on the human body anatomy and the use of color.