Yellow Garden Visitor

Hello

We had a recent friendly visitor to our garden. This bird very distinctive with yellow plumage, approximately the size of a house sparrow with similar mannerisms and not afraid to get up close. Eating from the top of dandelion flowers. A close up photo below if anyone can help identify it. We thought Serin but it appears to be slightly too large and more vivid in its colour with a distinctive  white tail and bright yellow plumage.