I think you are on to something here. But I do not think we can use a pencil as the mark. We are totally digital and computer only.
I especially like #10 But we would need to replace the pencil.
#6 looks like the warner brothers logo too much I fear.
#2 is good, but I would like to see another D in there.
David Taylor Design should all be the same weight font.
#3 is interesting, but seems very heavy and could use some color.
THank you!