Perhaps; it is up to the GM.
The spell itself doesn't mention this scenario, so the only benefit you could gain from it is one granted by the GM. The rules for ability checks mention:
The DM can also decide that circumstances influence a roll in one direction or the other and grant advantage or impose disadvantage as a result.
In these situations, if the GM decides that your creative use of the spell warrants it, you could gain advantage on the Dexterity (Stealth) check involved in the Hide action.
Keep your arms in mind.
While you can certainly change to appear to be rounder, and have leaves and the like...
You can ... appear thin, fat, or in between... the extent of the illusion is up to you.
you still have arms to contend with:
You can't change your body type, so you must adopt a form that has the same basic arrangement of limbs. Otherwise, the extent of the illusion is up to you.
Obviously, you could try to position yourself to minimize the visibility of those arms, but that could be a factor in your GM's decision. You appear as a bipedal bush with arms.