I don't think on StockXpert you can see your photos while application pending. My Photos is where they should be but it remains empty at this stage.
FWIW, I decided against attempts to get accepted there. Well-selling ones, accepted by SS, IS and DT are met with "we don't need this kind"... I don't take it personally but if they don't need it they don't need it, why would I want to upload without sales (I assume they know their client needs).