Interestingly enough, the deluxe Brainstorm I picked up at SDCC2016 varies from the Walgreens exclusive. I was under the impression that the SDCC version was simply an early release, but it turns out that the WG version is slightly different. It’s so different that I prefer this retail exclusive.
As you can tell in the thumbnail down below, this WG Exclusive has an overall darker color, or perhaps a more saturated tone. The face plate is a darker orange, whilst the transparent chest is also darker in its own fashion. Not to mention the decals on the wings make this a must have.