i like racerh's suggestions if you want to stay all in the same value. i read or heard somewhere that changing the values in a quilt can really benefit the end result. For vibrant though i sure like the version with the blue cross with red square.

First, that fabric is amazing!! Love it. I personally like #1.

Oh, definitely #3 - the yellow with a blue cross! The blue brings the butterflies to life. The yellow fabric (although a little paler yellow would be nice) becomes a background for the butterflies. I think the red fabric used in #1 especially and also in #2, detracts from the spectacular butterflies - kind of muddies the quilt - and almost "grounds" them.
Best wishes.

Number one but whichever you choose it will be so pretty. Just make it your own and do not worry about what others think.

just my opinion-I would go with #4 but I would change the yellow to black to go with the orange---but that is just me because I don't care for the color yellow, very few of my quilts have yellow in them, but do as you want.

Like 1!!!!!!

I agree - too much yellow. I think you need the blue to tone it down.

I like 1 and 3 - just my opinion

I vote for #1 i think the others are too busy

I like the first one the best....the fabric is gorgeous!!!