Our UK domain market is still struggling at the moment. It took such a bad credibility dive after the introduction by Nominet of the shorter .UK. That said the .co.uk is still the best. As for your domain, It's not a stand-out pairing, Pretty mediocre really (as many of my own are)
To get the attention of the British market A UK domain has to have a certain Umph and even then prices are fairly suppressed'
This one of those domains you could have listing for 10 to 20 years and not even get an offer. Price is probably going to be pretty irrelevant in this instance. UK domainers wouldn't touch it and business start-ups have so much choice in .co.uk. Either in hand-reg or resale market.
An Interesting aside though. type in the miss-spelling (like I did) and you will find "PTRETTYPICTURES.CO.UK" is taken. Now there you may find a buyer