I don't think it's too formal for everyday - IMO, it goes well with both formal and casualwear. It's a fairly good size - certainly not "too small". I think the yellow epi is beautiful!
I'm not a fan of the Jasmin shape (I generally prefer "taller" styles of epi bags - eg, the sac plat), but if you like the shape, by all means, go for it!
I saw a girl with the yellow jasmin and it inspired me to get one in red!! It's not too small at all. I carry it with my FP wallet, makeup bag, checkbook, and I still have room.
I LOVE it. I fell in love with it last year in the Mandarin color and it ended up being my Christmas present
It fits a LOT more than you'd realize..I can fit my PTI wallet and all other accessories very comfortably in it and still have room leftover.
Here's mine:
Lol. I was on another board and everyone was asking for pics of me holding different bags for size comparison and I was thinking..am I DONE yet??? Lol. Seriously though..I'm only 5'2 haha..I couldn't kick anyone's butt if I wanted to.
I the Jasmin. The red Jasmin is no# 1 on my LV want list. I'm usually a jeans and cute top girl, and I think it will work well with my look, and give it that extra something. So, no, I don't think it's too formal. The one color I didn't like was the black. IMO, it looked more 'matronly' than the other brighter colors.
I haven't seen the yellow IRL, so I can't comment on that color, but if you like it, I'm sure you'll rock it!!