To make it SEO friendly, assign specific filename from the SEO keywords on the title. If your image is coming from your own camera, it normally creates a default filename (example : DSC01227.jpg), make sure that you change the filename before uploading.

Another detail to consider is when creating two words on a filename, using a dash symbol “-“ will make your image more of a target instead of using underscore “_”. Search engines reads the dash symbol as space.

Disadvantages of blogging :

1. You need to establish your blog in the web. It takes a lot of factors to have a successful blog. Some of them are original and updated content, good SEO, appropriate design, and fast loading time. It is usually years to become an establish one.

2. With the billions of competing blogs and websites, you need to take time learning how to optimize your blog to be indexed and earned from it.

3. Slow income, you need to find your niche to increase your income.