羊 looks more like an ant or a spider to me.
は looks like a guy with a spear :3
し could be used for eels o.o
。 for coconuts or bulbs/other large seeds
も for a lizard or a giant scorpion or something
That doesn't mean they would look like that to someone else.
Bear in mind that what the letter looks like means little; T doesn't look like a troll, but is simply the first letter of it. U doesn't look like a human.
No, U doesn't. Neither does G for Goat, and the difference between the different npc are fairly subtle, lower case or a different color.
And the fact, that its subjective, is erroneous at best. This artistic style requires to sorta go with it, or see into it. Does the square root sign ever strike someone as 'Yea, that a weapon rack.
Or black double tilda means sand possibly but shades of blue means water. Gotta go with it. I was showing my mom, she was utterly lost until I told her what it represented, then she went with it, and saw into it.
Edit: Unless used to ASCII, no matter what the characters used it woudl still be as alien as first, until you grow used to it.
I hope no one is thinking that the suggest was to replace English, mathematical symbols, and the odd greek letter with another language character set. Just an addition to, to help broaden its pallet of whats there.