I've been blogging for nearly four years and haven't changed my theme in more than two. It's definitely time for a change and I'm thinking of going with a premium theme. But I have more the 420 posts, with thousands of photos, and my blog has built up quite a lot of traffic over the years. It has also become an important portfolio for showcasing my writing and photography. I'm nervous about upgrading because I find it very difficult to really understand how a theme will work on my blog before I actually activate it. The "preview" function seems fairly limited in showing me what I'll be able to do. And I don't want to screw up my blog and then wind up regretting my decision to upgrade.
I know this question is rather vague, but is there anyone out there who has gone through a similar transition and could offer some advice? My current theme is Parament. The premium themes I'm currently considering are Photolia and Adventure. My blog is part travel, part lifestyle, part personal story. Thanks in advance!
The blog I need help with is 2summers.net.