Dark ground

[Debra Jones]

I am not a very smooth surface sort of gal, but I love throwing just color into the Utrecht Acrylic gesso I paint over my canvases. I will splash a few colors, sometimes brazenly onto the surface, just to give variety and kill the white.
Mixing acrylic with acrylic, why would you say not?

I stroke very loosely so I retain the variations of color in the final surface. I know mine is a technique difference, but is there a techical or chemical problem doing this?

My need for color may be because I think a lot like a pastel painter when I do oils and miss the bright pastel papers.