Your drawings have some similarity to Korean Hangul. The first thing that you should elaborate on is how you would notate a specific word in some language, for example "Hello". Then be prepared to explain how you distinguish "sit", "seat", "set", "sate", "sat", "sought". Subsequent questions would be about how you notate Hindi consonants like [bʰ, gʰ, ʈ, ʈʰ] or Arabic consonants like [ħ, ʕ, χ, γ]. An even more advanced question would be how you notate the difference between [ʕ] as pronounced in Moroccan Arabic, in Palestinian Arabic, and in Somali. The last question (at least that comes to mind at the moment] is, how does this system compare to the International Phonetic Alphabet?