that takes a lot of time, patience and practice. those pictures you see above have not been made by a single shot. often you need to make hundreds of photos to get one that looks amazing.. all in all it's just about experience and maybe a little bit feeling for what you do.. ^^ oh and a remote trigger also helps!
For the first question, it totally depends on the remote, but mine is not expensive. 30 dollars i think. The tripod is moved to the right direction and turned down against the bowl all tripods should be able to twist and turn the camera. glad you like it!