At the end of it all, I arrived at the conclusion that getting lightning shots are a great pain in the ass. Especially when you have no idea what you're doing *points at self*
Firstly, I decided to go with a low shutter speed, but the results were severely disappointing:
But then I figured that the lightning flashes weren't appearing often enough, which is why I ended up with shots like those. In the span of 20-30 seconds, there would only be about 2 lightning flashes (and that's only if I was lucky), which rendered the long shutter useless.
In an attempt to curb the previous error, I upped the shutter speed and resorted to the tedious way of clicking on the shutter for whenever a lightning flash appeared. These were what I got at first:
These were definitely a vast improvement from the earlier tries, but still not quite there yet.
And what do you know? A few more frames later, I managed to capture the following shots:
☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺☺
Okay, to be honest, I was only satisfied with the last picture after post-process. The original capture did not look as appealing, and I was not satisfied. Lol.
But all is well.