There is no right or wrong answer to this question; it depends on what you want your blog to be about. If you’re mainly interested in writing about your experiences and thoughts, then a blog with few or no pictures might be more appropriate.
However, if you’re hoping to build an audience through pictures, then a blog with more pictures might be better.
Ultimately, the decision of whether or not to include pictures on your blog is up to you. Just keep in mind that if your goal is to attract an audience, including photos could help make that happen.