1.4 mm gap... Can I get bonding? (Photo)

Bonding on the front teeth can be done but I think it will make them look too wide.  You can get a mock-up before you do it to see how it looks and see if you are happy with it.   Closing the gap with Invisalign will probabaly be a better option.  You can get a virtual movie called a clin-check made to see how it would look before you go ahead with treatment. This would be more conservative treatment and this way you do not have to make changes to your natural teeth. It's not an instant fix.  It will take time to achieve the desired result.  If you don't like the shape, color, texture of your teeth, then you may consider getting veneers after invisalign.  You may be happy with the result of Invisalign treatment by itself.  Hope this helps!  Good Luck!   

Good Question-- The answer is yes--a capable cosmetic dentist can do a great job for you--ask to see photos of their work to make sure that you get the results that you want. Good Luck!