Short story: your body will swell if not restricted by a suit, so the image does not look unlikely to me (Disclaimer: I'm basing this simply on what I've read about this topic so far, I don't know much about medicine.)
There was one fatal accident in space, Soyuz 11, which gives us an indication what happens. The three cosmonauts died when explosive bolts fired simultaneous instead of sequential while separating the orbital module and descent module, causing a pressure valve to open while they were still in space.
Relevant parts of the Wikipedia article:
On opening the hatch, they found all three men in their couches, motionless, with dark-blue patches on their faces and trails of blood from their noses and ears.
…
An extensive investigation was conducted to study all components and systems of Soyuz 11 that could have caused the accident, although doctors quickly concluded that the cosmonauts had died of asphyxiation.
…
The autopsies took place at Burdenko Military Hospital and found that the cause of death proper for the cosmonauts was hemorrhaging of the blood vessels in the brain, with lesser amounts of bleeding under their skin, in the inner ear, and in the nasal cavity, all of which occurred as exposure to a vacuum environment caused the oxygen and nitrogen in their bloodstreams to bubble and rupture vessels. Their blood was also found to contain heavy concentrations of lactic acid, a sign of extreme physiologic stress. Although they could have remained conscious for almost a minute after decompression began, less than 20 seconds would have passed before the effects of oxygen starvation made it impossible for them to function.
According to the article "You Can Survive Being Exposed To The Near Vacuum Of Space For About 90 Seconds With No Longterm Damage" your body will swell if the swelling isn't restricted by a suit. There were lots of tests done with animals (dogs) to study the effects of vaccum. From the article:
Finally, the dogs’ bodies themselves swelled to nearly twice their normal size, so that they looked like “an inflated goatskin bag”.
The NASA study about these dogs mention water vapor effects and gas expansion as the causes for the swelling.
Joseph Kittinger made a high altitude jump at about 31km:
The pressurization for his right glove malfunctioned during the ascent and his right hand swelled to twice its normal size.
This incident is also mentioned in the "You Can Survive …" article:
From my previous experiences, I know that the hand will swell, lose most of its circulation, and cause extreme pain…. I decide to continue the ascent, without notifying ground control of my difficulty… Circulation has almost stopped in my unpressurized right hand, which feels stiff and painful… [Upon landing] Dick looks at the swollen hand with concern. Three hours later the swelling disappeared with no ill effect.
