Well well well look what arrived in the post today. A 70mm space viking, who just so happens to be perfectly sized to be a 54mm scale space marine.
Don't have any models on me for comparison, but the legs look similar in size as Artermis. If he's a bit taller, it is isn't outrageously so I don't think.
Great detail on the torso
Very nice indeed. The pose is not entirely my cup of tea (slightly leaning back, probably to swing the axe), but I may convert it slightly to suit. The head is also very much human sized, so could be used on other models also.
If you need a link, check out the 54mm models sticky post.