My Portfolio. Feedback are welcome

I just ended my portfolio . Please give your feedback. To help make it better. Thank you.
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Hi, I like your page. Your about section picture can’t e loaded (it seems that the file contains any error) and the background image returns a 404 error; anyway in your background-image property you have got to remove the quotation marks within the url brackets. Perhaps you do not want it, but if you want to center your contact form in the viewport you have just to add the col-sm-offset-2 class to its tag. You can also use col-- classes to define the position of your skills icons, instead of this chain of nbsp. Hope this can help.