Gallery Wall's and Baby News (not mine)

Now that I'm done decorating for Christmas it's time for me to get back to focusing on decorating my house for real. After spending countless hours on Pinterest, I've come to the decision that I want to do a gallery wall along my staircase. I think they're super cool but trying to create it has already become a daunting task. There's so many ways you can style a gallery wall but I've particularly taken to these two photos for inspiration.

I definitely like the idea of the photos being artwork and I also like it being just a few photos in bigger frames instead of a lot of little ones. I searched online all day and found some pretty cool prints that I like. The tough part to me is the frames. I hope that I can figure it out and when I execute my project it looks just as good as the above photos. Has anyone ever done a gallery wall that can share tips with me? I'd really appreciate any help I can get!
I had lunch with Jaclyn at McAlisters today. We had a lot to catch up on because I missed our lunch date last week since I was in Vegas. My best friend finally announced this week that she's expecting a baby in June!!! I'm so thrilled for her and Brad and I can't wait to meet that little nugget. She spilled the beans to me during lunch one week. I super didn't see it coming even though when she said "so I have something to tell you" I immediately said "you're pregnant."
I'm beyond excited for Jaclyn and feel so blessed to have as close of a friendship with her as I do. We've known each other almost 10 years now and we've been through so many life changes together. I've been there with her every step of the way and she with me. I'm excited to walk through this amazing time with her. I feel like I know more about pregnancy now than I ever have. I'm all over the internet seeing what the baby is up to each week! Congratulations Jaclyn and Brad! You two are going to be amazing parents and I can't wait to watch you in action!