Very Good!
I like the point-n-click genre and Psionic3D makes a very nice game. The play is smooth and the graphics are nice and it's a good way to spend 20 minutes at lunch.
My only thoughts on improvements would be some way to know where or when to shoot at the queen spider, it almost seemed random when I shot at it. Sometimes I hit and sometimes I missed and I was not sure why. I would also add more puzzles and more challenging ones as well. Maybe a difficulty level selection and choosing the level changes the dificulty of the puzzles.
Other than that, it's a very fun play, Thanks!