I may think so. Because for many reasons:
1. They both have red/orange short hair.
2. They both have on a sleeveless top.
3. Both of their shoes each have some sort of zig-zag running through them.
Although there are some differences:
1. Sora wears a blue helmet, while Misty doesn't.
2. Misty wears suspenders over her shirt, whist Sora does not.
3. Misty has blue/green eyes; Sora's eyes are red.
4. Sora has on longer blue jeans; Misty's is short and lighter.
So my question is: do you believe Misty’s look did inspire Sora? Yes or no?