Get some craft paint in a red that you like, and do some dry brushing of little areas here and there on the ball. If you want an organic feel, tho, I would be more likely to dry brush with touches of copper paint instead. I think it would add a bit of highlight and glow, but still have a warmer feel as copper would.

Try to find some dried red currant berries,you could glue them on, or instead of gluing the moss, try arranging it underneath the balls, along with some of the berries. Maybe you could tuck in a little bird for fun. Not sure how large your bowl is.

you can also dye them with Rit Dye...it gives a translucent color that looks quite natural!

Cindylouhoo, all of the above are good suggestions, and I don't have any more to add, I just wanted to tell you that I visited your Etsy site and you really make some cute things. Nice to have you coming by here too. ;o) Luvs

Oops! Cindylouhoo, I got the wrong person. It was Sadieloowho on the Etsy site. Sorry for the mistaken identity. Luvs