A blog... maybe, do you have a good vision of what kind of content you would be putting into the blog? If not, probably not. A blog without regular content is pretty pointless and will look strange. A forum... no. Can't imagine how that would work for a portfolio. You don't want an open discussion of the portfolio going on. And you'd be forced to constantly maintain and police the forum for content that isn't appropriate.

Hi all, I just want to know if a blog section and/or a forum section would be suitable for a website destined as a professional portfolio. For example, a portfolio website maybe should never include a section about news or sports, as well as it should always include a section about the personal CV, but I don't know if a blog or a forum are ideal or convenient for the portfolio purpose. Thanks,

Not sure what you mean. Dragging and dropping an image into the composer works fine for me.

If you want a completely empty home page, I suggest using the custom pages plugin and pointing your home page setting in the ACP to a blank custom page. Otherwise, you can use css

@kirayagami not without SSH. Besides that you will also need a MongoDB or Redis database. Cutting it short - no.