If you'd like to socket the components and find out, try it. IMO, and I could be wrong, it won't change much. The parentheses is merely a SHO into a green ringer into a rat. Most tone coloring happens at the end of the circuit (Rat). If you want more low end you may want to fiddle around with...
Keep in mind @BJG that with you switch as is, the BIAS control will only be useful when the selector switch is engaged one way. Not sure if you want to incorporate that or not into both transistors.
You're soldering looks ok for the most part. I would reflow all joints just to make sure nothing is cold. Also, have you confirmed each and every component value (resistor and capacitor)?
This board is definitely a rite of passage if you're into muffs. I've probably spent more time flipping switches on it that actually playing through it. One of the reasons why it just stays on my shelf....
Nice build, though!