You know, I've played a lot of games over my time, and I've got to say that this is the first time I have ever seen someone rip off a game so closely as you have. I bought Bridge Constructor back in the early 2000's and these are almost the same exact puzzles as those.
I think I'll let them know of this game so they can look at it and see if it volates there copyright.
 "Bridge Constructor"){kind=icon}
 "Disaster Will Strike 2"){kind=icon}