About this 3D model

i am new to 3d printing and i have watched youtube videos of it for a while (4-5 months) and i have loved it i recently went to the maker fair and saw a lot of 3d printers and that really got me interstead so i made this in tinkercad and i hope you like it and i win because i dont have a printer and we dont have the money to buy one so this is my only chance