I think the bike is an older model of the Pro (2013?), since the kit is more like the current Team edition. From your photos:
1) the groupset is SRAM APEX, same as the current Team. The current Pro has Shimano 105 which is slightly more expensive & better quality.
2) the disk brakes are Avid Elixir 1, same as the current Team. The current Pro has Shimano Deore which is again is a bit more expensive, not much mind.
3) the wheels are completely different and look like Richey OCRs which cost about the same as the Mavic XM319s on the current Team. The Shimano RX05 wheels on the current Pro are at least £50-70 more.
The current version of the Team is £675 in Halfords, given the pretty small differences in spec, it makes the Pro model look very expensive!
Since it's almost new but an old model I'd probably try selling for around £500, see if you got any interest and be prepared to haggle down to ~£450 including the accessories..
Gumtree, eBay & BikeRadar are good places to start, plus SE of course!
