I find them to be pretty similar. Some more vanilla and peach in this one, also some green cucumber which I don't come across in cask 6494. I like them equally well. Both are ok bottlings, but nothing really special. Also a bit too tannic in the finish.
Quite a similar nose to cask 6494, maybe a little more vanilla and a little less honey. Furthermore, peach and pear, some sugary cake note and a mild green note, the latter being more like a sour cucumber than a herbal or grassy thing. Also a distant note of oak wood.
Honey, vanilla, pears and peach. Pretty peppery with an obvious grassy bitterness and some wood tannins.
Short to medium in length: again bitter tannins, though the fruity sweetness and even the cucumber note from the nose also return.