How to get I get brighter crisp photos?

I have tried everything I know to fix my pics, flash, settings, etc.
I'm working with a Nikon D3200
I have a 50mm F1.8 Nikkor lens and a Sigma 70-300mm f4 lens.
I still have shadows on the face.

I want pics to be like this.

This is my work thus far
http://www.sammiewilsonphotography.com/#!gallery/c14xj

Any advice is much appreciated. No hate comments please.

What nikon 50mm f 1.8 AF lens is compatible with Nikon D3000?

I bought a nikon 50 mm f 1.8 AF lens and it won't auto focus and its not letting me use the 1.8 aperture setting, so I'm assuming they are not compatible. Can someone recommend which exact lens I need for my nikon d3000? Or let me know how I can make this one I have work?

How to set bulb mode on nikon d5100?

How to set bulb mode on nikon d5100 on the way to press shooting button to start capturing and press again to stop it. I need longer exposition and I can't hold shooting button for a 100 minutes. So I asking is there option to set bulb mode, press button for capturing and press again to stop it?

What is better - Canon 1100d SLR v/s Nikon D3100 SLR?

Have short listed these cameras with low budget in hand…

MUST: Good Pic, Battery Life, Light Weight, Value For Money

Optional: Low Light Shots, Combo Kits, International Waruntee…

Hey guys also i inquired about this thing, ( RESIDING IN INDIA)
WHAT is Difference Between Canon 1100D Kit 2 & Kit 3?

My nikon d5000 will auto focus and flash but not take a picture?

It is not the darkness level and i tried the two button reset.

Adive on adaptor to connect Canon EOS series compatible tube to Nikon D90 body?

The microscope camera adaptor in my lab fits my friend's Canon EOS series. The connection between the microscope and camera doesn't have any electrical elements involved. What adaptor can I use to mount my Nikon D90?

Added (1). I'd rather not, they're going to charge a lot and I'd rather get an adaptor that will fit on the Canon EOS compatible fixture and onto my Nikon D90 body. I was thinking that camera adaptor outs there should suffice, but wanted to know what to look out for when I'm perusing online for one.

Camera for an amateur photographer?

After taking photography for two years in school, I'm beginning to really enjoy it. I'm looking into buying a digital SLR camera within the next week after I get my next paycheck. I would prefer to go no more than the 500 dollar mark, but for something simple, I think that's reasonable. I do not want a point-and-shoot! I can't stand the quality after using an SLR for two years. To get to the point:

I'm looking for a camera that I can take high quality photos with. I'll be carrying it with me almost all the time so it's not just something to take the photo with here and there; I really want to use this as much as I can. Since I'm still in the process of learning, I don't want something that's going to come with a bunch of high-tech features that I'll never touch in my life but add a hefty amount to the price.

I'm looking at the Nikon D3100 right now, but would love tons of suggestions/reviews for different cameras.

I want a cheap tablet to use for my nikon d5100?

My buget is £60 and i would like to use the tablet to edit pictures while i'm out taking pictures so i dot have to go home and do it on my pc

What is the shutter limit of Nikon D5100?

Can you guys help me.
What is the maximum shutter counts for Nikon D5100.

Camera setting for fireworks? D5100 nikon?

I recently bought a D5100 Nikon from my cousin and we haven't had a chance to get together for her to explain to me all the fancy buttons and settings. Tonight being Canada day, I'd love to take some pictures outside and especially of the fireworks so if anyone can tell me what setting would work best I would really appreciate it.