size of JF-17 and J-10

http://images.yuku.com/image/pjpeg/75b35a454447a4652653db9d2af076c52d604ec.jpe

yeah, its pretty clear in these two pics, one aircraft is very noticeably smaller than the other yet on wikipedia, the specs say

J-10: 15.5 m (50 ft 10 in) length, 4.78 m (15.7 ft) height
FC-1: 14.0 m [45] (49 ft) length, 4.77 m (15 ft 8 in) height.

and for comparisons sake
Gripen: 14.1 m (46 ft 3 in), 4.5 m (14 ft 9 in)
Texas: 13.20 m (43 ft 4 in), 4.40 m (14 ft 9 in)
F-16: 49 ft 5 in (14.8 m)16 ft (4.8 m)

Both roughly the same height, and about 1.5 meter difference in length only.. yet these images show that the difference in these two sizes is significantly bigger than what numbers suggest.

is there any more accurate info out there?