Taking those first photos and then finding the courage to ask for comment are by far the hardest steps. For me the biggest issue is the lighting or rather lack of. the result is barely any shape or form. I'm glad you resisted the dreadful on camera flash straight at the model but you need some. Indeed one of the great things about boudoir style is you can be a lot more dramatic with light that for say glamour.
If you are using natural light from say a window then you need to get closer even if that means using nets to diffuse it a little first. You need to watch perspective too. Pushing the hands towards the camera like that ends up with them looking huge. There are other points but becoming more aware of the light and the models position are the first things to work on.
Creative live nearly always has some free broadcasts running on photography so worth watching for when they are covering boudoir again Sue Bryce, Jen Rozenbaum and Lou Freeman are worth watching for
The Photographer Academy is another huge UK resource for photography training with a number of great boudoir and glamour training videos. Worth following on Twitter as they sometimes have full pro membership for just £30 a year which is just insane.
It was taken at night so all I had was the bedroom light on and I had a Nikon SB910 facing the ceiling with the defuser on. I only got the camera and flash 3 days ago so just trying new things. Im guessing i need some studio lights, softboxes/umbrella's maybe or to try more in the day with natural light ?
Nope. you do not need any more gear. There is plenty you can learn with what you have. If you have money burning a hold in your pocket invest on training. If not wait until there are specific limitations on the gear you have you need to address.
Bouncing a hotshoe flash is great but you need to experiment a bit that's all. Get to know your gear and its restrictions. Probably the most important thing to do with your gear is switch to manual. Camera and flash. If you were on auto for example that may account for the odd lighting as you could be getting a mix of room lighting topped up by just enough flash power to create a photo.
learn how changes to aperture ISO Shutter speed and flash power will affect the final result. The one advantage you do have over the old film days is instant results with zero cost. You do not even need a model initially. A football on the bed will serve while your work out some initial settings that give correct exposure with the depth of field you want.
When bouncing light from you flash remember that if the surface is not white you will get a colour cast, which is not nice. Also the distance from flash to reflector and reflector to subject will change the type of light too. If you are using the same room all the time a block of polystyrene white sheet or even large piece of white card will allow you to get bounce where you want it. If money is not a huge issue a large popup reflector white/silver is a great thing to have around