Cheap Metal Cores Can Someone Who Knows What They're Doing Critique These WELDS For Me?

Can someone who knows what they're doing critique these WELDS for me? - cheap metal cores

I have experience in the welding of very few - perhaps 10 minutes after a Hello from a stroke, the machine at work, and everything that we learn how the book so the weld.

Finally wasted and I bought a welder flux core business, and I play about half an hour to take my new toy.

I wonder what kind of realized weld quality are, I can do, and if there is a problem that none of these 4 balls please let me know what they are, I can not improve!

Welding 1 (I think it is very good to have a few splashes, it is said, I expected to flow from basic cable):
http://i146.photobucket.com/albums/r265/ ...
http://i146.photobucket.com/albums/r265/ ...

2 (The welding is nice, but I think it was) a little cold:
http://i146.photobucket.com/albums/r265/ ...
http://i146.photobucket.com/albums/r265/ ... (Rain of metal on the bottom does not burn through, I have soldiers from both sides)

Welding 3 (I think it is probably the best orNE):
http://i146.photobucket.com/albums/r265/ ...
http://i146.photobucket.com/albums/r265/ ...

Welding 4 (one extra, this seems more "waves"):
http://i146.photobucket.com/albums/r265/ ...