As for now it looks a bit empty, but with more detailed logo and other slight changes (maybe just a entered circular gradient masked on one of the colours) it should work just fine :)
I really like this logo. Very simple yet elegant! Yes, the creme colors work very well with the Blue color.
The first is the best in my opinion!
Looks very well designed and it sounds like you're working within constraints of the estate colors/coat of arms. If I had to vote...the bottom concept seems much more appealing and fits your description better. The thing that seems off-key to me is the blue...not that the blue itself is bad...but it just "pops" out and kind-of clashes with the contrasting rich, elegant colors behind/surrounding it. You've broken it up with the borders around the blue...but is there any way to soften the color? So that the color itself speaks to the age/nobility of the estate. The color itself is just a bit too sharp. Overall, though, it looks really good!
Thanks for the feedback. I have already changed the blue to a darker navy which is at once very elegant and also more reserved. I hope it looks good.