and the videos?100% mine!look for them as much as you like!because you think you saw thumbnail?

Used the thumbnail to search for the original video you simply downloaded without buying it and added captions over it and said that that video is entirely your creation, you have No valid arguments. Here is the author you took the video from put some captions on it and said that the video is yours: http://www.rui2.net/sucai/1226561.html - This is the original source, but you didn't use that, you used this video:

BUY! characters - No, If you did you would have the video in 1080p Resolution also, you would have the video edited not identical to this one.
Btw:
Internet does not forget!if those videos where not original a simple google search would have found them! - Yes I found them using a simple google search. You just cut someone's video a bit, slapped on some captions, 2 pictures and named it your own work? That's cool.