Here we have quite an impressive effort at cosplaying ero-gymnast Birdy Cephon Altirra, of 鉄腕バーディー / Tetsuwan Birdy / Birdy the Mighty. The results are compared below.
A not so impressive effort. Not even the skin is showing?
Of course, the breasts are an order of magnitude too small, but otherwise the first is an interesting effort; like cosplay Hatsune Miku, this may be a difficult one to get right. Not unappealing, but the 2D images gathered below are perhaps rather more attention grabbing.