The photo with your original lens is very strange, so poor quality and seems that your lens is dirty.
I never had so bad pictures has you have, nevertheless it's was a good workaround that you found that can improve the camera quality....
LG OPTIMUS G 32 GB (E975)
Stock 4.4.2 Sling 2.2 ROM
SONY S Tablet 16 GB
Stock US 4.0.3 r5 ROM
Huawei Ideos X5 U8800
Blefish CM 11
devices: Fujitsu-Siemens Pocket LOOX 600 (smart not phone) ; Samsung Omnia i900 8GB; Samsung Galaxy Ace 2 ; Huawei U8800 IDEOS X5 ; LG Optimus G E975