The further your CG goes rearwards the more sensitive the elevator will become and the more rearward tilt you add the slower the model will fly but more power will needed.
I am with Joe, add some washers and see how it feels. If you are still pulling back on the elevator then move the CG rearwards.
If you do both at once it may want to pitch up on take off, try one thing at a time.
Oh yeh....It looks great!