The tiles certainly are your strong point, as are your maps. If the scripting matches how good the graphics are, then this hack will be brilliant! I love the ice cave, but something is annoying me about that snow patch... Just seems too bright, but that isn't something worth worrying about, as I just need to get used to it. I wish you all the best.
EDIT: I'm an idiot. It isn't too bright. Probably just me. Seemed like it because of the dark floor, and then suddenly bright white snow.