I wanted to post a picture of my nails that I did today.
The products I used were Love and Beauty (Forever 21's beauty brand) nail polish in Pink ~ 2-3 coats, Sinful Color's nail polish in California ~ 1 coat, and Sally Hansen Insta-Dri Top Coat ~ 1-2 coats.
First of all let me say, the pictures are not true to color but you get the general idea. In reality, the Pink color is much more bright/neon pinky-peachy color - quite pretty, while the Sinful Colors nail polish is a very sheer base with pinky-purple shimmer flecks. It tones down the brightness of the pink, in my opinion, and makes it more wearable.
As far as the consistency of the polishes, the Love and Beauty polish is quite thick and chunky. It doesn't apply easily unless you load a glob on and work with it that way. I really wouldn't recommend it. The Sinful Color's polish is one of my favorites. It just adds a sweet sparkle to any cream polish. The Sally Hansen Insta-Dri is one of the ONLY Sally H. products I'd recommend. It allows you to paint your nails and then dries them to the touch in a minute or two... much, much faster than if you were to use a typical top coat. The only downside is that it's quite thick.
Have you tried any of Forever21's nail/beauty products? What did you think?