I think that the soldering is okay. I've checked it / re-soldered the new trimpot and it all seems to be okay.

Is there any chance (since the pedal was on when I broke the trimpot) that I fried a transistor or something? (I'm not too knowledgable about what it would take to do this, but maybe if the resistor went the transistor would go as well?)

Thanks for the welcome.