I got ask to do a spiderman cake for a 2nd birthday.

Mom wants a topsy turvy cake.

she wants the bottom to be 10in squared slanted, with window theme on it, to look like a building

then the top layer to be a triple 6 inch round.. with stripes, the color of spiderman..

then the top have a number 2 with spiderman standing up..

I cant picture this cake in my head..I'm trying to find a picture of a square and circle topsy turvy, but cant find one..

so will it work or look funky?

Here's one from the galleries with a square bottom tier and round second tier. I think it looks cute!

http://www.cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1492381

ETA: Here's one with a spiderman theme. It looks very similar to what you described.

http://www.cakecentral.com/modules.php?name=gallery&file=displayimage&pid=1488979

HTH!