If you are looking up a property on zoopla and for some reason are unable to see the pictures, we would suggest that you take a look at the Estate Agents website itself for the same property to see if there are pictures available on there. If there are no pictures of the property on either of the websites, we would suggest getting in touch with the estate agent and inquiring. It may be the case that they have not been able to get out and take pictures of the inside of the property as of yet however have been instructed by the seller to advertise the property immediately. However it may also be the case that the property has not yet been updated and refreshed yet which they should be able to manually publish or alternatively advise when their next publishing run for the website will be in order for the pictures to be updated and displayed.
We hope this helps.