Don't know if this will work & its not a brilliant picture: if not, this is the web site- Highland Stud- and he is the sire of one of their broodmares. www.highlandviewlodge.com/breedingpage.asp
If you read underneath it says that the picture is of one of Master Imp's sons, not Master Imp himself - (Above picture; Master Ballinteskin-gelding by Master Imp. 2nd in the 7 year old Final of the FEI World Breeding Jumping Championship for young horses at Lanaken, Belgium.)
Oh sorry- you're right; plus there is another of his sons on the web site; and somewhere I saw a picture of a Master Imp daughter, I think? They all look very much the same; sort of stuffy in build, foursquare with the same legs, neck, head & expression....He must really stamp his stock.
Wonder why no pictures? Either he must be a very great horse who hardly needs to advertise, or else he must have two heads & a hump.