That post with the t shirts picture, and then the reply post, are genius!
You are the first tico i found in this web, im also from Costa Rica, hehehe, sorry, i know this is off topic
I would not use Comic Sans for that login page.
I must say that even Comic Sans sometimes does look allright in some designs (children stuff or some stitched items).But in the case of your login page I would go with another font. I would also take a look at the spaces between items and the position of the button in respect to the login.