i do have some advice, your designs need to be more..... different. eg. i noticed instantly that the legs are simetrical, its not good. it makes it look like you did it in a rush, or couldnt be bothered.
also, i would like to complement your achievments, i have NEVER made a set that sold for 100k.
Edit[ i know it says ive only posted 25 times, but thats cos i got accused of hacking and got banned. BTW, i didnt hack EVER]