Um, I don't think it has d'Uccle in it at all. There is nothing that makes me think 'that's got d'Uccle in it.' I'm almost certain it has Cochin in it though.
A better clearer picture would help.
She looks like my white cochin bantam. But, with 5 toes, I'm a bit puzzled. Is her comb just straight, with no extra 'spikes' on it?