His arms were already short to begin with. If you scroll up the post-lengthening photo to a point where legs are completely hidden and only torso and pelvis are present on the screen, you can immediately spot that his arms are short relative to his torso and pelvis.
I see he's Asian. Most Asians have short arms and you can see that pattern on Dr. Lee's Before & After photos on his website. They have ridiculously short arms, no matter their starting height. But, the shorter the starting height, the more ridiculous their arm length is.
Africans have longest arms and that's why most of them don't look odd after LL.
But, the thing is, most patients who look Artem Lobov level post-LL had already short arms for their natural height to begin with and looked odd even without LL.