I'm new to all this, but these look like the images I've developed using 'spent' developer, that's either been used to develop many (too many?) images or has been sitting out for a day or more.

This is interesting, as these look very much like the photos I am getting from a box of direct positive paper I bought off ebay when it was out of stock with Ilford. Really pale and flat, and mine are even a bit discoloured (my results from brand new paper from Ilford were great, so my developing method is fine). So, how old is the paper you're using? I wonder what the shelf life of direct positive paper is.

Judging by the edges, I'd say underdeveloped. What developer are you using? Temperature? Time? Agitation?