Is it normal to feel the ripples of implants on the out side of one breast but not the other? (photos)

can occur but assuming breast tissue is even on both sides, it would be anticipated to be near equal.  If your breasts were not equal and this one was smaller, its a reflection of the thickness of your tissues.  And when you bend over at your waist, almost everyone gets rippling on the side and this is due to traction ripples that occur similar to that when holding the knot of a water balloon and seeing all the ridges extending from the knot.  Best to discuss your concerns with your surgeon since he/she was there and knows what was done.

At three weeks out, it's hard to say.  What I am looking for at this point is normal healing.  That is...no redness, fluid collections, or wound issues.
Even fourth generation silicone implants can have a ripple.  Palpation of the implant is more dependent on the quality of the breast soft tissue envelope then the devise.  The thinner the breast envelope and the larger the implant...the more it is palpable and visible.  
Many remedies have been offered for thin breast envelopes. These range from 5th generation form stable implants to fat grafts and biologic inlays (cadaveric or porcine grafts).
None of these should be even considered before three months have passed since the primary surgery.