More Adventures in Crewel Embroidering

I'm working on the Petite Flowers Stomacher Kit by the Golden Scissors (available to purchase through Wm Booth Draper).

Unlike my last crewel embroidery project, I didn't make a plan. This is what I have done so far...

Stomacher: slip stitch, long and short stitch, backstitch, New England laid stitch

While I'm quite happy with...

 ...my little blue flower...

 ...the leaves around my little blue flower...

...and the maroon flower. 

The berries and the mini blue flower are fine...

...as is the leaf with New England laid stitch. 

I'm not sure if I like the way the red / maroon colors have come together...

 ...on this larger flower...

...and this smaller flower.

I'm definitely not happy with the way the colors have come together for...

...this pink flower. I think it looks funny to have the light colors on the outer layer and the dark colors at the center.

I'm having the same issue with this blue flower. The darker color at the center looks out of place. 

I thought I could get away with just backstitching to outline this flower. But since it's the largest one on the stomacher, it looks naked. 

To see if I'm on the right track, I've checked a few original garments...

This stomacher from the Snowshill Wade Costume Collection (Accession Number 1348713.2) is SOO pretty but it's not a good comp because it's silk embroidery.

This 1750 embroidered petticoat, also from the National Trust Collections (Accession Number 1361215), is a better comp as it is labeled as crewel embroidery. When I zoom in, it looks like the flowers are mostly the same color so this doesn't seem quite relevant either.

 Closer to home, this 1758-1760 Boy's Coat from the Connecticut Historical Society (Accession Number 1978.104.0) shows evidence of both light colors as the center of the flower and as the edge of the flower. 

This c.1732 dress fragment, also from CTHS (Accession Number 1950.518.0), is worked in crewel embroidery. Upon zooming in, I again see both examples of light and dark colors as the center and border for flower petals. 

Sew...what do you think? Are my color schemes fine because I'm making the mistake of looking at it with a modern sense of color coordinating...or should I rip parts out and start over? (I'm leading towards the second.)