Tip for anyone wanting to view it. First, download the GraffwalkAR app (it's free). Go to the corner of Rutland Street and Charles Street, which is the furthest away from the tower where you can see it in full. Open the App, and go to AR locations, and select St George's Tower. Hold up your smart phone, so you can see the tower through the app. Press the black button on the side, and watch the tower come to life through the magic of Augmented Reality! Now walk towards to tower, and watch things becoming more and more awesome... You can take photos, by pressing the green button. On Android phones, you can find these shits in your DCIM folder. Unfortunately, the Bond Street AR location has been painted over. But if you can find a photo of the original image and hold the app up to that, it should still work.

This was painted by Lord Numb and Mig29, under the collective name of Brink. https://kenilworth.nub.news/news/local-news/new-mural-unveiled-in-kenilworth-237997

The other artist who painted a mural on here was Dynamickart. He painted some of the exterior walls, including the robin.

Found it! The location on the map is wrong; it's closer to Poundland and The Post Office

It's a bit further to the west, on the corner of Noel Street and Poland Street