runouw.com

I ran out of ideas on how I'm gonna make my level "Fire Crimson's Netherworld".

Can some of you guys give me advises on how I'm gonna make my level?

I just made a topic yesterday discussing LD ideas if you want to ask there.
http://runouw.com/forums/viewtopic.php?f=15&t=49487

But to answer your question, check out FluorescenceLight's Brutal Magma Land for some ideas. I assume you're making a fire themed level.