i'm doing some royal icing transfers for my cake

i make a character, let it completely dry, around 1.5 day

then i put it on a royal icing base, due i afraid the cream will make the transfers wet,

the base not yet completely dry, but i found the base color is started to blending into my transfers,

you can see the pink base and the edge yellow hair, 

i didn't make the gradient for hair...it only yellow,

and the white shirt become light pink...the face too.

although the effect not too ugly,,, but i would like to know why ...

i was uses the same consistency royal icing, the transfers completely dry

if i put it on the cookie, i think it also have this issue...