Hey dude 
I actually really like this! Awesome colour combination and design and not a bad attempt at brushing for a first time either
So well done.
But advice is what you want so here goes:
->First up if you kind find a reference picture with similar lighting this is great, as it helps you work out what colours and reflections should go where. You should always aim to have one of these to start off with
->Make sure reflections are clear and sharp, if you compare the bumper to the side you'll notice there aren't really as many of the clear varying lines of colour in your brushing, and its a little blurry. But hey - it still looks pretty good. Just be brave, and try to include these (seemingly random) 'lines' of colour that you can see along the sides, as these will really bring it to life and help with realism when you've built them up
->Avoid putting white lines along the edges of body lines and vents etc, there isn't too much here which is good, but its often a habit which we get into - in reality these white lines rarely appear.
But remember that brushing everything, use it in moderation to begin with, and most importantly - keep practicing!! You will improve
Even the very best learn with each chop.
But cool stuff - congrats on your first attempt at brushing and keep on at it!!

I actually really like this! Awesome colour combination and design and not a bad attempt at brushing for a first time either

But advice is what you want so here goes:
->First up if you kind find a reference picture with similar lighting this is great, as it helps you work out what colours and reflections should go where. You should always aim to have one of these to start off with

->Make sure reflections are clear and sharp, if you compare the bumper to the side you'll notice there aren't really as many of the clear varying lines of colour in your brushing, and its a little blurry. But hey - it still looks pretty good. Just be brave, and try to include these (seemingly random) 'lines' of colour that you can see along the sides, as these will really bring it to life and help with realism when you've built them up

->Avoid putting white lines along the edges of body lines and vents etc, there isn't too much here which is good, but its often a habit which we get into - in reality these white lines rarely appear.
But remember that brushing everything, use it in moderation to begin with, and most importantly - keep practicing!! You will improve

But cool stuff - congrats on your first attempt at brushing and keep on at it!!
