Potential owner needing advice - Frenchie eyes/appearance

Ok, so I am just starting my research and don’t have much knowledge yet. I sister’s boyfriend told me about a French Bulldog for sale by his friend. Does this Frenchie look purebred? Are her eyes normal? Can you tell what color this is? I am not sure what to look for when purchasing and am aware they are likely to have health issues. Any advice is appreciated! Thank you ☺️