I've commented on that Tweet asking why lino flooring has been fitted, as 153s are supposed to have carpeted flooring (it should have the same carpet as the refurbished 175s, as 150s are the only Sprinter family units that are supposed to have lino flooring).
I've also asked why the "before" shots in the GIF don't represent 153325, which was delivered to TfW dewrapped to tatty ex-London Midland green livery, and with a London Midland spec interior with only FirstGroup "dynamic lines" seat moquette, have stated a 2 day old spot of the seating capacity in response to a claim that it would need investigating, and have actually answered a question that was dodged about how long the units go into works for.