I’ve never used blender before and my teacher had showed us it and I really liked it so I watched videos on cycle rendering and I was so interested and this is my first piece of work. Can anyone tell if you all think im on a good start and what can I do differently. P.S. I love portal
Its a very good start!.. I suggest just keep watching tutorials and keep trying your own thing like this image. A bit more light would be nice and maybe some gloss on the material… but yeah overall its a good start… much better than what I was making when I first started lol…
I quite like it, way better than what I’ve made back when I started.
You said your teacher showed you blender, so not really sure how “experienced” you are overall with 3D modeling,
but just incase you are really new, don’t get hung up on 1 piece of work at first.
I’d suggest to make a bunch of different objects and stuff like that to get a feel for the program.
What I’d improve on the object you posted (I’ll try not to overwhelm you):
Add a basic plane as a floor and walls and maybe add some color to them.
Maybe put them both next to each other instead of one floating above.
Add a “Sun” object and set its color to a “warmer” color (white-yellowish).
Blender really is awesome, hope you’ll stick with it! 
good job keep going
Use that we called “infinite plane”, is a curved plane as bottom and background. Also texture it. Use two planes for studio lights.
This threat is good example of all I said It: https://blenderartists.org/forum/showthread.php?358525-Perfect-studio-setup-test.
For 3D cámera you can use the 3D camera for cycles or two cameras separated by 0.06 unities.
Here is an example:
For materias I recomind you:
http://3dwolf.weebly.com/materials.html
Also, there are more things.
Lightning, camera and materials, must be enough for begin.
Nice subject choice. You might be interested in my most recent project…
I started this with just a cube and added all of the geometry you see. Did not use any boolean operators at any point. I did use mirror XYZ, and started with one sector of one face of the cube (after I got the circular parts in the center done, I deleted all but that). Then lots of bevels and subsurf.
And yes, I too love Portal.
EDIT: BTW, if you want the blend file, I will be happy to send it to you.
Attachments
Thanks for all the replies sorry that I couldn’t respond to any of you and thanks for the feedback been working on some projects and haven’t checked this site till today!