Interesting concept, but it sounds slightly female to me.

I wonder what difference is there between male and female voices besides pitch (excluding cultural differences in way of speaking)? If some are exclusively binary, using or not using it will obligatorily lead to one or the other, and if so, a totally "gender" neutral voice becomes impossible.

(I used gender enclosed in quotes because I'm only talking about the general biological differences between male and female voices, not elements such as way of speaking, choice of words, etc)

Maybe one approach could be mix aspects from both male and female voice.