How about one more combination?
The dark brown, the tan, and the off-white?
My feeling/opinion about the blocks:
Upper left - I think the floral print would be awesome as a wide border to pull together the colors (maybe) used in the blocks. I don't care for it in the four patches. It seems to 'smear' the edges.
Upper right - If the whole quilt was going to be in those subdued tones, it seems quiet and elegant. If it's going to be with more blocks with more contrast, it will look washed out.
Bottom left - I like this one the best of the four - the points really stand out in this one
Bottom right - same thing as top left - I don't care for the print in this block
I think this is sort of a tricky block to get to come out exactly right.
(You did ask for comments - )