That (i.e., good or bad) depends entirely on your personal preference and whether you can work with it or not.
If you want to go the syllabary route have a look at hiragana / katakana and just use the images that people use to learn Japanese writing (…alternatively, have a look at hangul or devanagari):
Personally, I use braille to encode the individual letters if I cannot create an image for the word itself (which always comes first). This way “career” is the person for “c” (11) with the action for “a” (10) on the object of “r” (72) in the first location and the PAO for “e”, “e”, “r” (12, 12, 72) in the second location.
It has the advantage that you can reuse your existing binary system and you can use standard braille text on the internet to practice reading. I have a description in this post how you can practice writing on your phone as well:
Either way… in terms of good or bad as far as I’m concerned… I prefer to build on top of existing things… that being a syllabary like hiragana or using braille for individual letters rather than creating my own standalone solution.