I thought tilt shift stuff had been passé for years now 😉
Anyway, assuming this is urban stuff, the amazing Luder designed carpark at Trinity Square was demolished a while back, so forget that. The new development could be interesting to get up, and shouldn’t be difficult. Otherwise, Boro transporter bridge, several of the bridges over the Tyne between Newcastle & Gateshead for Newcastle and Gateshead quayside areas, Penshaw hill for Sunderland maybe(?) northern edge of the NY moors for Teesside, obviously the monument for views of Newcastle’s Grainger Town (arranging access might be tricky), Westgate road tower blocks, top of the Byker Wall, top of the Leazes stand in St James’ Park, though that’s so high you don’t really need tilt shift to make everything appear in miniature. Lots of Durham city around the Wear would suit tilt shift even from low level, just because of the topography, as well as Cathedral and Castle.
Can’t help with Leeds, but, just in case there is any confusion, it isn’t anywhere close to the NE 😉