You can't use images in your sigs here.
As for the sig itself, like most image-type sigs it's very amateur and unoriginal.
For the first one:
Kerning's too loose between A and Y
Kerning's too tight between Y and L
Needs more air between logotype and strap
Strap could be in a heavier weight of Optima, if you have it
Crown could do with a degree or two more tilt to right
Crown could also do with a tiny bit more air between it and the O
Really not sure about the combo of Futura (Demi?) and Optima
Maybe try an informal script/hand for the strap?
Although the logo doesn't really express the whole "Think Different" concept, I like it. Simple, clean, and elegant. As for suggestions, Blue Velvet pretty much summed it up.
Great job, keep it up.
Thanks ma'am,
Glad your not one of those people who just goes "It's ****" atleast you actually tell me how to solve it.
Because 'Think Different' has NEVER been overused...
I would worry about the slogan before the logo. Apple already used it (it's essentially a meme at this point); find something new and original and make it yours.