Your character, Kape-chan, is look so cute and elegant. :) I really love the way you picked your colors for her outfit and the background. Love your taste in coming up with accessories for your character's outfit. The belt, chain w/ heart key, and the necklaces make the outfit extra special. :D I also have to compliment you on how you are able to give your character's surrounding a mystery atmosphere. The light feathers was a great idea. ;)
I know I have no place in giving advices but there are some details that I felt that you could had done better on. The lenght of Kape-chan's right fingers. They appear to be shorter compare w/ the length of the palm. I could see your intention in the pose of the fingers but they should be a little longer. The thickness of the fingers are perfect so I suggest you continue drawing the fingers in the thickness that you have been. :)
I am sorry for giving suggestions and I have one more. ^_^' I see that Liberia-kun got lazy in coloring in the right side of the bowed blue rope. XD Though you had been improving with the lines and your colors is always done very nicely. :) It's not always easy to create a fine doujinshi and I am happy that you share your creative works with us. :) I want to encorage to share more. You are indeed talented and I want to see your skills continue to grow Liberia-kun. :)
Btw, your character combine w/ the skin looks awesome. :) Congrats on getting your skin finish. I also have to apologize for calling Kape-chan by the wrong name at the start. ^_^'