While being frustrated with the difficulty of learning Japanese, I came with a random thought. Looking quickly through the list of constructed languages at wikipedia, I couldn’t help but notice that most of them are based on the latin alphabet. This.. is.. boring.. You could do better than that!
You know what would be REALLY interesting? A language that would have the following features:
a) The pronunciation of the Japanese language. About 110 different sounds only and it sounds so cute 
Compare that to 8000 sounds of the English language.
Image credit: Human Japanese
b) A writing system using simple/quick to write and needing minimal space syllabary symbols, like the ones in the Korean alphabet or Katakana.
Image credit: Wikipedia
c) A consistent and simple grammar system without all those exceptions to the rules that we hate.
Now, that would be a fun language to create, learn and speak. Is it possible? It might even exist already? I don’t know. I don’t even have any idea what I’m just talking about.. 
I can barely speak my own native language correctly. But it’s an interesting though, don’t you think?
I did made my dream language, Kumiko, and it has the following features:
– a featural abugida, except one block can contain 2 syllables
– a logical grammar
– a marker system
– 400 syllabic sounds
alphabets
http://vvcap.net/db/h6DVFTBhSZzOJb34mTZO.png
examples
http://vvcap.net/db/MSZLDsD6uoqGDwpilBw1.png
(computer-generated, doesn’t look so good)
the bad things are, it got surprising and mind-bending features and 3 retroflex consonants
http://shinkirou.org/kumiko/wiki/index.php?title=Main_Page
Ouaou! It looks really interesting! It looks that you have put a lot, lot of effort in this project. Bravo!
I don’t understand much of the details though