Facebook showing me Face palm for my photos

From last few days I have been experiencing this horrendous pixelation when I upload photos to my Facebook Photography Page.

The uploaded photos looks C R A P. I usually upload images with the resolution of 2048 to maximum width/height and sometimes with 960 (w/h).

Just a while before I uploaded a nice evening view of Kathmandu Valley to my Facebook Photography Page and below is the before/after.

Photo after some enhancement in Photoshop CS6
Photo after I uploaded to my Facebook Photography Page

If anyone reading this post knows how to overcome this problem please HELP me out.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.