brouser crashing when veuwing images

my brouser keeps crashing i go on to the portfolio page wear i have posted my image and click for the full image and my brouser crashes on all my posts and all my pcs using ie and firefox my site is https://www.curlywilly.com/wp i am due to put this website live next week can any one tell me what could be wrong

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im posting images to my website and some of them when i click to veu them the page freeses and it says scipt to long going onto the brouser trubble shooting it says trubble sizeing i dont understand as i uplouded all my images the same size 600 wide i have tryed firrfox and ie help most appeciated