It's always good to have informed opinion Anton, I would have to agree about the wonky signature devaluing it for many. On say a Mdina fish vase with a flat and polished base a dodgy signature could be polished off easily enough but here removal would be a pain and hardly worth the effort.
My poorly explained rambling about the colour could have been clearer, what I was attempting to say is that there is much more blue than green in this globe, so perhaps the balance not density of colour. Your inside out is lovely, I'm green and blue with Envy, with the odd bubble thrown in as well.

I did have two Mdina textured vases with fake signatures and considered starting a fake signature collection but that idea fell by the wayside.
There was a signed pink swirled vase (the sort with a flattened shape) for sale at the National, like your experimental bowl and the charger but my funds would not stretch that far.

John