As a second pair of eyes all parts seem to be in place. Cuts too.
The spot where the double link comes together does look like it can use some more solder? It seems like a hole. The cut on that same row more to the right looks a bit fishy too, but if you have checked that I'm sure it's fine.
I haven't built it, so I can't comment on that. Your transistors are placed correctly though.
If you use all the same transistors, what important is that the CBE matches. In your case they do. Could there be a problem in the switches? Like a missing link or something or a missing pot to pot connection?