I don't love (cold/unprocessed) tomatoes that much, but you make them look YUMMEE - that picture with all the drops on all the coloured tomatoes is my favourite :-)
(Don't use flash :P Maybe work with a reflector to get even more light in the pictures if you weren't already doing that.)
You're missing out! I love fresh tomatoes, a pinch of salt and you have a delicious snack haha, could be just me though :D
Yeah, I usually just shoot with natural light, but I saw some pictures online that were taken with flash and some of them look really really nice too (after editing, of course), just something to play around with, I guess haha