I love this square. I was tempted to break my solid color rule and use two just so the front post stitch bars would stand out, but I resisted and I am just as happy with my square. I think it is more subtle and makes you want to lean in to see how the design is formed.
This square was designed by Jessieathome.com and is simply named the Crossed Square. You can find the original pattern here. You should check out her site she has great patterns in every category. Notes from Moogly on this square here.
Personally I don’t think I can give you a single tip on how to do this square. The only thing a beginner might have a problem with is the front post stitches but if you watch this Moogly video on how to do them you will get it in no time.