There is quite an interesting wall decoration in calle San Josè (just off calle Pintada) next to Los Barriles. Very colourful.
This, on the Balcón de Europa, is also noteworthy.
I am a fan of the floor tiles in Plaza Maria Zambrano – behind the bus station by the start of the bridge.
In the same area, on the old F. Olmo building, is this ceramic tile picture.