Right - I've got why you're interested in Toots then - but she really is world class, museum quality, the absolute tops in this sort of thing.
Your piece is still very competent. Fusing and slumping of glass doesn't require as much complicated and expensive equipment as molten hot glass work does - a lot of artists can set up on their own to do it, quite easily.
I think it highly unlikely there is a connection between the two artists, beyond the use of filaments of glass - and your piece uses far thicker bits!
I'm afraid a 90% adjustment from £10,800 might not be nearly enough! I think your piece, unless accurately attributed to a big name, should come in at under $100.
umm, what's ASA?
Abbreviations don't always help when they mean different things to different folk in different areas!