Great job!
You can heat the pvc pipe with a heat gun and give them a slight, gradual bend if needed. Looks like you could do that with the center one in the last pic, to clear the aluminum beam and gain a bit more pipe length.
To finish the ends of the pipes, heat them with a heat gun or torch, and push it onto the pipe on top of a tapered-neck beer bottle. This will get a flare started. Then reheat and push down on a flat surface (metal table or glass pan).