firstly it is common knowledge to use an image host to post your pixels in question. don't know how? use the search function to find info. I'm not here to hold your hand.

Secondly, the Horror Castle contains 4091 colours! That's way way way too many to be considered pixel art. In fact, I think anything over 64 colours is a tad too much these days. The same goes for the rest of your gallery not to mention so many other things that hurt my eyes about them.

I really think you should scrap all that and start from scratch. Learn about the basics of pixel art and start small. Use basic forms to get a simpler understanding of what we do here. When you're ready and have the confidence, try something larger with more detail. Use the forum and your peers here to get advice and critique. Most of all, have an open mind towards learning this art form.