It's a quite enjoyable map pack, which is the primary purpose of any game, but the experience is nothing but regular.
The scenarios are quite raw and poorly constructed. This shows a
deficiency to take advantage of the themes of each level, decreasing the visual identity and making things less interesting. However, props to Techno Canyon, it's better developed compared to the rest of the levels. I liked that level and it's my favorite.
The level design, overall, is not bad. It has good flow, but in some platforming sections, i felt interrupted and with broken flow. Try always to accomodate platforming with the level's overall pacing and speed.
The balance between speed and platforming is the key. Also, i think it would benefit a lot if you adopted a less linear structure and fleshed out more the mechanics and design of each level, since lots of sections feel empty and underdeveloped, so you don't get that feeling of "Is that it?". And don't be afraid to have more relief and terrain variation on your map, it makes things more interesting.
Also the final boss is ridiculous. What made you think that putting a no-ring 25 hits low gravity and janky brak boss was a good idea? Very underwhelming ending.
In the end, it's a fairly good foundaiton. But it can be more, and i know you are capable to do it.
