This is closer, yes. Good!
You are over-thinking this. That is normal at the beginning. This is a very simple exercise.
Remember that the replies to me are just for me to help you with feedback. Relaxing into SEEING in the way that is instructed in the exercises is the real point. Each exercise is a meditation. Do them in a relaxed way. There are no points for labeling things for an hour if you were only asked to label things several times during the day. No wonder you were dizzy!
So, yes, what you did this time is much closer. You threw in some extra pieces & maybe strained yourself by doing it for an hour, but it is much closer.
It is best for it to be different objects each time and you may mention senses & thoughts about more than one object in one sitting, but keep it simple. Relax into noticing. Really SEE. Really LOOK.
Do you notice how you included "I" in each item in your list? Let's drop that for this exercise. There will be other exercises about "I."
For the keyboard I'm typing on, I hear it clicking ... sound
I feel the keys with my fingers ... sensation
I see its shape ... image
I don't small or taste it ... nothing to note
I don't look at anymore, but there is a mental image ... thought
There probably is some kind of taste in your mouth and some kind of smell in the room. Note those.
Here is how I would do my keyboard, which is really just an item in my this-moment experience, similar to the original coffee cup example:
Clicking = sound
Smooth hard feeling under fingers = sensation
Black keys, silver frame, DELL lettering = image and color
Wondering what to eat for lunch today = thought
Chemical smell of paint just applied in my office = smell
Slight taste of crackers I just ate = taste
Check every sense, yes. You can do more than one for each sense, as well. I could also say:
Image on computer monitor of LU site = color
Sound of "Rhiannon" by Fleetwood Mac = sound
Hoping paint really isn't toxic = thought
and so forth. But no need to go overboard and do the 100 things you can see, hear, touch, smell, taste & the 100 thoughts that arise in the time you are doing the exercise. Please mention at least one of each sense, and a list of 8 to 10 is plenty.
Again, the point is how you become aware of the difference between the label and the Actual/Direct Experience of the thing you are describing. It will be very, very important to be able to recognize this in subsequent exercises.
Please do this a few more (short) times and write out at least 2 more like the examples to show how your experience went.