This is a splendid figure, and as far as I can see entirely accurate in its sculpted details.
But I have a problem with that blue !
That sort of electric blue was impossible to create with 17c dyes, especially on woolen clothing.
OK, the Swedes sometimes used blue as their sash colour,indigo dyed on silk, but it would not have been anything like as vivid as this colour ( and they didn't have a standard sash colour anyway ). And blue for the breeches and stockings could also only have been made with indigo, and would either have been dark blue ( like Napoleonic uniforms ) or a mid-blue, but much , much duller. When painting models, we should remember that pigments( often very strong nowadays ) are not the same as dyestuffs used to colour clothing in the past.
In fact , blue was a colour scarcely used at all at this period, ( 1620/30) except for the liveries of servants , and for some uniform coats in the Swedish and other armies ( uniforms, in the sense of a single colour coat for each regiment , at the choice of the Colonel , were just becoming commoner in the 1630s ). It's very unusual to see it used for breeches or stockings, which were usually grey/brown from undyed wool, as were the great majority of clothes. Although coloured uniform coats were sometimes issued, most soldiers had to wear their own clothes, and replace them when they wore out from their pay ; so they were often in rags.
So maybe keep the blue sash,toned down, but please, repaint his breeches and stockings grey or brown !
On the subject of the colours worn in the past , I had an interesting conversation recently with a costume making friend, who wanted to use some green cloth to dress a 1:1 museum figure. I have hundreds of paintings on my computer, and we tried to find a mid-17c painting showing a man wearing green.
We failed.
The same can almost be said for blue, though I found one.