Not a bad start but here are some pointers, and really just my opinion, so here goes. -(1)- Try and be aware of your sense of scale, perhaps add a temporary 177cm standing box, which for reference is an average height of a male adult. from there you can judge the height of worktops etc. Watch out with the thickness of your water facet, worktops and oven door handle, they seem too thick in my opinion. (reduce the scale of your water facet by at least 50% and same with the height/thickness of your worktops -(2)- Add a toe kick to the bottom of your kitchen units. (3)Give your worktop surfaces some reflection blur (around 5% - 15%). -(4)- Try and stick to a set of colour tones that compliment each other, with perhaps a contrasting colour on one wall only. -(5)- Give your kitchen sink some splash back tiling, and move your window up to allow this, and lift the sink up so it is flush with the worktops -(6)- Bevel all your edges with some small bevels 1-3mm -(7)- As for lighting try and add a distant light (120% slight yellow) outside your window (pointing towards the kitchen, from quite high up. Add a spotlight pointing into the window about 70% intensity) and lastly some area lights pointing down just below the ceiling line about 30% - 40% intensity). Now turn on your radiosity, set it to Interpolated and turn off your ambient intensity to 0%. See how you get on with some of these pointers. Good luck and keep up the fine effort bud! :o)

Thanks for the tips, I'll see how it turns out