Would veneers work for me with large gap, and if not, what other options do I have? (photo)

Make sure you find a dentist who knows how to prepare the teeth.  Most of the preparation will be on the distal or back side of the front six.

You can make a big change with a combined proceedures,first braces could be a good option,but in case you do not want to do braces,you can go straight to Smilemakeover,shape size and even color to make that big difference,close those gaps.