for me personally 3D has kinda lost it..... there is very little work done on the floor these days.
If a tech came along that actually did/constructed the work before people eyes, they would blow the competition out of the water (that's how we used to do it).
Now, many just bring along a lunchbox with half the stuff already done and plonk it on the nail.
Doing it this way nobody knows or learns the techniques or effort put into 3D.
And to be quite honest, anyone could have constructed the work, I think it's important to DEMONSTRATE your skills, not just adorn nails with ready made work.
As an avid competitor since 1988, I think 3D work is losing the plot, if I had a year to pre-do my work and plonk it on a nail and win ..... great, but would I get any satisfaction .... NO.