Again, I really would recommend moving over to the professionally designed themes that Wix has available, but if you would like to stick with your site, here are a few more things you can do to improve the site’s design.
Make sure text sizes and fonts are universal. Specifically, I noticed you hadn’t updated the About Me page. Your copyright/footer should be the same size as your body text and I would still say that your body copy is a bit too large….
You might want to remove the border styling around the box you have the nav and site title in, as well as from the contact form. Things always look much better when they are simple elements. Additionally, I would recommend you move toward having a white background versus the blue on the pages that have that. It will look much cleaner for it and the “negative space” will help the content breath and the focus to be on your photos rather than the rest of the site.
You could remove the drop shadow and 3D effect on the site title and change the font to one that compliments the rest of the fonts. If you were using the Raleway and Open Sans combo I recommended earlier, for example, you could have the site title Raleway while the navigation would be Open Sans. The key here is for the site title’s font to either complement the rest of the fonts or for it to be one of the fonts you use elsewhere so there is something tying it all together.
The homepage looks much better with some content on there! I would suggest, however, you don’t just link to the different galleries, but rather move the galleries over to the homepage. You don’t have a ton of photos in each gallery, so it wouldn’t be too much to look at and removing the three photo pages from the navigation as it is now will really help simplify things. Remember, the more choices we have, the less likely we will buy anything.