To be honest I mostly don't know how to draw elements for my game but I do watch several pictures about a thing I want to draw in a format that fits with my game and Platform Builder. Yeah, I later also found more pictures about a person sitting on the vehicle but I used a photo for planning that you can see below.
Your suggestion feels reasonable or even fully correct but drawing it takes a lot of time for me and I have done my part. Because of I want to make that level also I don't want to prioritize editing already created frames especially considering that a bike is correct which was confirmed by yourself.
However, I may edit and make my game better here and there if there will be no more important things to do left.
About the boss fight videos are that yes, I took down it from the list and did it also with some other videos because I now have full long play videos that are more updated. Those have a challenge(reach way) parts and boss fights in one and if to watch all the playlist from my YouTube channel then you also can watch all boss fights or skip if you only want to see bosses. But now you can watch updated bosses where for example, Metal Plugger has its own sprite etc.
I, however, never will zero my previously created stand-alone work and also my old videos are actually there. Those are just invisible from the search engines. If you like my abandoned videos where you only can see a certain type of challenges then let me know and I find it no problem to include my old files with the new ones in YouTube and Steam!