I'm assuming you feel too stretched out on the Orbea which could be because (a) you are or (b) you aren't quite used to being in that position on a bike. With respect to the former, go to the LBS and try to tweak the fit to the extent that you can. There are limits to what you can do to shorten reach. Too short a stem can make the bike handle poorly. Your saddle should be moved fore and aft to position your knee over the pedal; it shouldn't necessarily be moved to accomodate reach. You also might talk to them about whether a stem with more rise and/or tilting the handbars will help.

Also, here are a couple common "rules of thumb" when trying to figure out reach: Ideally, your upper body should be at a 45 degree angle when your hands are on the hoods. You should have a bit of bend in the elbows; your arms should not be locked. When you're in that position, your handlebars should be obscuring the hub of your front wheel. These are just rules of thumb; like most rules, they can be broken.

Unless they absolutely cannot get the bike to fit you, I would suggest that you riding it for a bit before you decide to chuck the bike. For many, it takes time and increased fitness to get used to road geometry. My bike was arguably a bit too big for me when I started. It wasn't uncomfortable really, but I was near the limit of a good fit. Over time, my reach has changed. Between riding and yoga, my core has gotten stronger and I've gained some flexibility. Now it feels like an extenstion of my body. If I'd gone with a smaller bike, I'd likely feel too cramped now.

Beyond that, you bought a great bike so don't regret it on that count.