HAHAHAHAA. On second look, the forward thrust of the people on the left is DAMN DISTURBING. LOLL! The sketch is just, bad. Badly bad. Badlyly badly bad.

On my 3rd try...
Not too bad as compared to the first.
The left guy's chest on the left is a tad sunken though. :((

After some amendments...

And the final...


Would prefer it to be something like this though, with rough adjustments...