Coincidence strikes - I just finished a Harlequin Minotaur which had been lying around since '95. No pictures yet, but I hope to put some up tomorrow.
The figures are still available from Black Tree Designs:
http://www.blacktreedesign.com/europe/home.php?cat=2393&sort=orderby&sort_direction=0&page=2Now, the usual caveats for ordering from BTD should apply; therefore, I'd like to mention some more specific issues with this figure, and possibly the others, too.
The figure has a very solid, integral base attached to its hooves. It was about 15mm x 40mm, and about 2-3mm thick. I removed most of it in a lengthy, curse-laden process to mount my figure on a 40mm round base.
The overall sculpt is clear enough, if a bit soft - not exactly the best premise if you like to work with washes. I built up the skintones in layers.
The pose on my specific figure (Minotaur Lord HM1119) is rather stiff. I really like the "Gladiator" (very Minathon, IMHO, and the others look decent enough, too). The "Warrior" does not seem to have an integral base.
Sizewise, the Lord stands ca. 55mm tall (bottom of base to tip of horn). I assume the others are similarly sized. As said, I bought mine almost 20 years ago; if the casting is good, it is a decent enough figure, although I am not exactly sure I find the price (10.79€ on their page) justified these days. Stylewise, it works out OK next to my Heartbreaker and Four A goblins and my ex-Grenadier barbarians.
Apart from the pose and (current) price, it's an OK, but not exciting figure. The others look a bit rougher in sculpt, but more dynamic in pose.