Gie me some feedback, please

[realitycheck3907]

Hey guys I took these on the 4th was just wondering if you could use your infinite photography wisdom to help me out a little bit. Why are there squiggly lines in the fireworks? Or is this normal?
And just any other critiques you have for me on these shots would be great.

 

[KmH]

What was holding the camera?

 

[Bitter Jeweler]

camera shake.

 

[jess28]

Try a remote trigger, even the slightest movement (like pressing the shutter even if the camera is on a tripod) can show. A remote solves that, and they are fairly inexpensive.

 

[choudhrysaab]

I like the second picture the most ... only because it doesn't have that aircraft antenna sticking out. rest are good too ... see if somehow you can take that out =)

 

[realitycheck3907]

camera was on tripod. i dont have a remote but will be getting one. thanks for the advice guys.

choud thanks for the advice i forgot to crop out the towers on all of them.