It looks good with your body but the colors make it look tacky and yeah it is quite revealing, specially because you have big breasts. But honestly, the biggest problem are the colors. It's an ugly dress. However, what's important is that you like it and feel comfortable with it.
Too revealing? Generally yes. there are some events/venues where it would be fine, but not for most things. Otherwise? As other have mentioned it does come off looking a bit tacky, probably because of the colors.
It is very revealing. And the colors make it look super tacky. This is something you can only wear to some club or rave. And even then it looks super cheap. Like something you've sewn yourself out of old swimsuits and 80's duffle bags.
I love revealing dresses but I honestly think it all looks tacky together and it doesn't flatter your boobs. You look good and it's not that you don't look good or that the dress is too revealing, it's just all not very flattering is all.