Hi Richard,
My pleasure. Glad to have been of some help.
A few afterthoughts, if I may. . .
1) Poll-arms of varying styles were part and parcel of the ceremonial and "palace-duty" dress of many of the world's royal guards up to the last century. There are still a few (e.g., Papal Swiss Guards) who deploy--and drill!--with the halberd to this day. Admittedly, this is no longer the fearsome weapon of the medRen Swiss mountaineer, but is still a halberd in form and modified function.
2) The colour of the tunic was, well, Bavarian Blue! Prussian blue is too, too dark; "light blue" is too subjective and does not convey the depth and beauty of the actual colour.
The colour values in the image of the museum exhibit are unfortunately WAY off! I have modified the image to hopefully give you an approximate, ballpark idea of the colours:
Unfortunately, the supraveste and its embroidered and appliquéd enhancements do not fare well in either version of the image.
As with most small, elite royal units, there was very little room for variation. Royal guards epitomized uniformity: they were a reflection of the monarch and the state.
3) Re: the boots. This is a toughy. The colour is usually described as "mouse/y grey". Now whether that means a warm grey, or a greyish brown, I will leave that one to you. The adjusted image gives you an idea of the almost "sharkskin" nature of the colour: from some angles it looks brown; from others, grey.
HTH!