Hi Denise, I think you are noticing that the top in the first 2 pics ends at your widest (!) part, thus making you feel 'bigger'.
Of course you don't look anything but slender, and we are the only ones who stare at you standing still facing a camera.
I like the variety and comfort of NOT tucking all the time, so don't give this a second thought!
I LOVE the red in outfit 3 with your fair hair- FAB outfit!!
Yes I think you look stunning in all of the outfits. Guess I can kinda see what you are saying about the silhouette but its probably a function of cut and also the colour and places of definition... All the other outfits I recall you wearing have a place of definition - the angular lines of the neon purse, or the rocker edge accessory or even the sharp colours in 3 in this post. Its just a different look but you look fab!
I have been meaning to stop by for at least a day to tell you how stunning you look in that necklace. Each outfit is perfect with it! I esp. like #2 and #3. It is sometime harder to fell as slender in looser clothing b/c when we stand still to take a photo or look in the mirror we dont actually see the items draping and falling back against our body as they do when we move. I think the looser fit in #1 is fab on you