The issue is whether you want to sell it - if you do, putting it on eBay will reveal how much it's 'worth'.
You could give more essential detail, and all the information that a buyer is looking for. Like on the size (55cm c-c top tube?), the condition (do the Mag 21s work?) That sort of thing, plus bigger pics, makes all the difference to value on eBay. If a bike is as clean as that, everything works fine, the level of kit is good and nothing needs replacing or servicing, then you might well raise the amount you're looking for. But you have to reckon with the fact that ParkPre are under-valued because they aren't that well known. And the lack of decals is no help at all. I'd keep it if I were you.