The battery Im using is not a standard Lipo battery but a custom made Lipo battery whenever I connect the battery to the esc it beeps continuously with a red light. Please help

What is the output voltage of the battery ?  Also, in the first picture, it looks like you have the battery connected in reverse ?

Some ESCs need the max throttle to be set, for them to work :

http://www.rcindia.org/electric-planes/normal-start-up-procedure-for-electrics/

How did u make it up?

The output voltage of the battery is 11.1v, the problem got solved, I just let it beep itself into sense, the battery was made by a guy from whom we get all our project materials. He is a real pro