First of all, your screenshot links are broken.
There's a great amount of detail surrounding the mountain that I like. Being speedy jumping from bit to bit is key in a situation like this - falling in to the water could mean death. Well done.
However, the design concept of the mountain itself seems much more fit for a single player level rather than a match level. It takes way too long to get to the top, nullifying the need for the infinite ammo. Remember that SRB2 is a fast-paced game in match, and spending 3 minutes to get one upgrade ruins the fun.
Overall a good map with some glaring flaws that could be looked upon for future maps.